/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:42:05,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:42:05,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:42:05,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:42:05,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:42:05,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:42:05,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:42:05,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:42:05,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:42:05,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:42:05,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:42:05,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:42:05,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:42:05,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:42:05,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:42:05,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:42:05,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:42:05,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:42:05,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:42:05,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:42:05,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:42:05,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:42:05,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:42:05,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:42:05,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:42:05,881 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 [2020-09-04 13:42:05,928 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:42:05,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:42:05,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:42:05,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:42:05,931 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:42:05,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:42:05,932 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:42:05,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:42:05,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:42:05,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:42:05,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:42:05,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:42:05,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:42:05,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:42:05,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:42:05,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:42:05,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:42:05,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:42:05,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:42:05,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:42:05,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:42:05,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:42:05,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:42:05,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:42:05,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:42:05,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:42:05,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:42:05,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:42:05,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:42:05,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:42:06,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:42:06,443 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:42:06,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:42:06,451 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:42:06,451 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:42:06,452 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-09-04 13:42:06,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74d29c183/1308a6d593204650acd041c18d19bca4/FLAGbb826320c [2020-09-04 13:42:07,077 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:42:07,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-09-04 13:42:07,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74d29c183/1308a6d593204650acd041c18d19bca4/FLAGbb826320c [2020-09-04 13:42:07,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74d29c183/1308a6d593204650acd041c18d19bca4 [2020-09-04 13:42:07,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:42:07,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:42:07,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:42:07,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:42:07,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:42:07,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:42:07" (1/1) ... [2020-09-04 13:42:07,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39cd098f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07, skipping insertion in model container [2020-09-04 13:42:07,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:42:07" (1/1) ... [2020-09-04 13:42:07,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:42:07,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:42:07,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:42:07,732 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:42:07,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:42:07,775 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:42:07,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07 WrapperNode [2020-09-04 13:42:07,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:42:07,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:42:07,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:42:07,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:42:07,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07" (1/1) ... [2020-09-04 13:42:07,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07" (1/1) ... [2020-09-04 13:42:07,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07" (1/1) ... [2020-09-04 13:42:07,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07" (1/1) ... [2020-09-04 13:42:07,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07" (1/1) ... [2020-09-04 13:42:07,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07" (1/1) ... [2020-09-04 13:42:07,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07" (1/1) ... [2020-09-04 13:42:07,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:42:07,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:42:07,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:42:07,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:42:07,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07" (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 [2020-09-04 13:42:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:42:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:42:08,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 13:42:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-04 13:42:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:42:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 13:42:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:42:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 13:42:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-04 13:42:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 13:42:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 13:42:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:42:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 13:42:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 13:42:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 13:42:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:42:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:42:08,352 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:42:08,352 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-04 13:42:08,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:42:08 BoogieIcfgContainer [2020-09-04 13:42:08,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:42:08,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:42:08,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:42:08,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:42:08,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:42:07" (1/3) ... [2020-09-04 13:42:08,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4977ebd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:42:08, skipping insertion in model container [2020-09-04 13:42:08,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:42:07" (2/3) ... [2020-09-04 13:42:08,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4977ebd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:42:08, skipping insertion in model container [2020-09-04 13:42:08,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:42:08" (3/3) ... [2020-09-04 13:42:08,368 INFO L109 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2020-09-04 13:42:08,380 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:42:08,391 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:42:08,415 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:42:08,462 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:42:08,462 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:42:08,462 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:42:08,462 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:42:08,462 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:42:08,463 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:42:08,463 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:42:08,463 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:42:08,487 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-04 13:42:08,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-04 13:42:08,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:42:08,496 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] [2020-09-04 13:42:08,497 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:42:08,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:42:08,505 INFO L82 PathProgramCache]: Analyzing trace with hash -850547107, now seen corresponding path program 1 times [2020-09-04 13:42:08,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:42:08,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691602124] [2020-09-04 13:42:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:42:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:08,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:42:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:08,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 13:42:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:08,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:42:08,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691602124] [2020-09-04 13:42:08,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:42:08,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:42:08,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213541728] [2020-09-04 13:42:08,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 13:42:08,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:42:08,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 13:42:08,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 13:42:08,812 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2020-09-04 13:42:08,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:42:08,982 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2020-09-04 13:42:08,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:42:08,984 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-09-04 13:42:08,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:42:08,997 INFO L225 Difference]: With dead ends: 59 [2020-09-04 13:42:08,997 INFO L226 Difference]: Without dead ends: 31 [2020-09-04 13:42:09,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:42:09,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-04 13:42:09,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2020-09-04 13:42:09,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-04 13:42:09,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-04 13:42:09,045 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 20 [2020-09-04 13:42:09,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:42:09,046 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-04 13:42:09,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 13:42:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-04 13:42:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-04 13:42:09,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:42:09,047 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] [2020-09-04 13:42:09,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:42:09,048 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:42:09,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:42:09,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1453375688, now seen corresponding path program 1 times [2020-09-04 13:42:09,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:42:09,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570614767] [2020-09-04 13:42:09,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:42:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:09,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:42:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:09,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 13:42:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:42:09,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570614767] [2020-09-04 13:42:09,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:42:09,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 13:42:09,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18729840] [2020-09-04 13:42:09,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 13:42:09,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:42:09,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 13:42:09,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:42:09,271 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-04 13:42:09,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:42:09,465 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-09-04 13:42:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 13:42:09,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-09-04 13:42:09,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:42:09,467 INFO L225 Difference]: With dead ends: 48 [2020-09-04 13:42:09,467 INFO L226 Difference]: Without dead ends: 30 [2020-09-04 13:42:09,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:42:09,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-04 13:42:09,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-09-04 13:42:09,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-09-04 13:42:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-09-04 13:42:09,480 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 20 [2020-09-04 13:42:09,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:42:09,481 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-09-04 13:42:09,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 13:42:09,481 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-09-04 13:42:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-04 13:42:09,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:42:09,483 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] [2020-09-04 13:42:09,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:42:09,483 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:42:09,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:42:09,484 INFO L82 PathProgramCache]: Analyzing trace with hash -169907062, now seen corresponding path program 1 times [2020-09-04 13:42:09,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:42:09,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268815640] [2020-09-04 13:42:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:42:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:09,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:42:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:09,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 13:42:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:42:09,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268815640] [2020-09-04 13:42:09,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557365644] [2020-09-04 13:42:09,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:42:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:09,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2020-09-04 13:42:09,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:42:09,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:42:09,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:42:09,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-09-04 13:42:09,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140787902] [2020-09-04 13:42:09,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:42:09,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:42:09,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:42:09,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:42:09,816 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2020-09-04 13:42:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:42:09,842 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2020-09-04 13:42:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:42:09,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-09-04 13:42:09,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:42:09,845 INFO L225 Difference]: With dead ends: 49 [2020-09-04 13:42:09,845 INFO L226 Difference]: Without dead ends: 37 [2020-09-04 13:42:09,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:42:09,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-04 13:42:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2020-09-04 13:42:09,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-04 13:42:09,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-04 13:42:09,858 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2020-09-04 13:42:09,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:42:09,859 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-04 13:42:09,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:42:09,859 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-04 13:42:09,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-04 13:42:09,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:42:09,860 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] [2020-09-04 13:42:10,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-09-04 13:42:10,075 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:42:10,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:42:10,076 INFO L82 PathProgramCache]: Analyzing trace with hash -203072550, now seen corresponding path program 1 times [2020-09-04 13:42:10,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:42:10,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449044688] [2020-09-04 13:42:10,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:42:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:10,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:42:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:10,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 13:42:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:42:10,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449044688] [2020-09-04 13:42:10,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446819929] [2020-09-04 13:42:10,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:42:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:10,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2020-09-04 13:42:10,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:42:10,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:42:10,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:42:10,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-09-04 13:42:10,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687261350] [2020-09-04 13:42:10,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:42:10,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:42:10,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:42:10,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:42:10,226 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 3 states. [2020-09-04 13:42:10,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:42:10,238 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-09-04 13:42:10,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:42:10,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-09-04 13:42:10,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:42:10,239 INFO L225 Difference]: With dead ends: 48 [2020-09-04 13:42:10,240 INFO L226 Difference]: Without dead ends: 30 [2020-09-04 13:42:10,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:42:10,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-04 13:42:10,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-04 13:42:10,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-04 13:42:10,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-09-04 13:42:10,247 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2020-09-04 13:42:10,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:42:10,247 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-09-04 13:42:10,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:42:10,248 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-09-04 13:42:10,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-04 13:42:10,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:42:10,249 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] [2020-09-04 13:42:10,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:42:10,463 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:42:10,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:42:10,464 INFO L82 PathProgramCache]: Analyzing trace with hash -596099560, now seen corresponding path program 1 times [2020-09-04 13:42:10,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:42:10,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405146840] [2020-09-04 13:42:10,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:42:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:10,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:42:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:10,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 13:42:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:10,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:42:10,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405146840] [2020-09-04 13:42:10,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609649701] [2020-09-04 13:42:10,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:42:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:10,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2020-09-04 13:42:10,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:42:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:42:10,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:42:10,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2020-09-04 13:42:10,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005320849] [2020-09-04 13:42:10,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 13:42:10,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:42:10,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 13:42:10,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:42:10,679 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 9 states. [2020-09-04 13:42:10,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:42:10,872 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2020-09-04 13:42:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:42:10,872 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-04 13:42:10,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:42:10,874 INFO L225 Difference]: With dead ends: 67 [2020-09-04 13:42:10,874 INFO L226 Difference]: Without dead ends: 48 [2020-09-04 13:42:10,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:42:10,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-04 13:42:10,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 35. [2020-09-04 13:42:10,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-04 13:42:10,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-09-04 13:42:10,883 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 25 [2020-09-04 13:42:10,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:42:10,883 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-09-04 13:42:10,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 13:42:10,884 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-09-04 13:42:10,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-04 13:42:10,885 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:42:10,885 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:42:11,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:42:11,100 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:42:11,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:42:11,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1096950668, now seen corresponding path program 2 times [2020-09-04 13:42:11,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:42:11,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619287852] [2020-09-04 13:42:11,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:42:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:11,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:42:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:11,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 13:42:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:11,340 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-04 13:42:11,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619287852] [2020-09-04 13:42:11,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974949342] [2020-09-04 13:42:11,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:42:11,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:42:11,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:42:11,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:42:11,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:42:11,439 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-04 13:42:11,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:42:11,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-09-04 13:42:11,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517669437] [2020-09-04 13:42:11,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:42:11,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:42:11,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:42:11,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:42:11,442 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 11 states. [2020-09-04 13:42:11,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:42:11,754 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2020-09-04 13:42:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 13:42:11,754 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-09-04 13:42:11,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:42:11,755 INFO L225 Difference]: With dead ends: 80 [2020-09-04 13:42:11,756 INFO L226 Difference]: Without dead ends: 58 [2020-09-04 13:42:11,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-09-04 13:42:11,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-04 13:42:11,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 40. [2020-09-04 13:42:11,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-04 13:42:11,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-09-04 13:42:11,770 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 30 [2020-09-04 13:42:11,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:42:11,771 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-09-04 13:42:11,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:42:11,772 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-09-04 13:42:11,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-04 13:42:11,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:42:11,773 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:42:11,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:42:11,975 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:42:11,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:42:11,976 INFO L82 PathProgramCache]: Analyzing trace with hash 36245332, now seen corresponding path program 3 times [2020-09-04 13:42:11,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:42:11,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392030147] [2020-09-04 13:42:11,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:42:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:12,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:42:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:12,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 13:42:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:42:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-04 13:42:12,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392030147] [2020-09-04 13:42:12,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881853688] [2020-09-04 13:42:12,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:42:12,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-09-04 13:42:12,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:42:12,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 24 conjunts are in the unsatisfiable core [2020-09-04 13:42:12,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:42:12,400 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-09-04 13:42:12,400 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-09-04 13:42:12,412 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-04 13:42:12,413 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-04 13:42:12,413 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2020-09-04 13:42:12,650 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-09-04 13:42:12,651 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2020-09-04 13:42:12,653 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-04 13:42:12,657 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-09-04 13:42:12,667 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-04 13:42:12,670 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:42:12,674 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-09-04 13:42:12,675 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:33, output treesize:15 [2020-09-04 13:42:12,758 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-04 13:42:12,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:42:12,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-09-04 13:42:12,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982170038] [2020-09-04 13:42:12,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-04 13:42:12,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:42:12,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-04 13:42:12,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-09-04 13:42:12,760 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 17 states. [2020-09-04 13:42:13,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:42:13,692 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2020-09-04 13:42:13,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 13:42:13,693 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2020-09-04 13:42:13,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:42:13,694 INFO L225 Difference]: With dead ends: 56 [2020-09-04 13:42:13,694 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:42:13,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2020-09-04 13:42:13,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:42:13,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:42:13,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:42:13,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:42:13,696 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2020-09-04 13:42:13,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:42:13,697 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:42:13,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-04 13:42:13,697 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:42:13,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:42:13,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-09-04 13:42:13,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:42:14,142 INFO L264 CegarLoopResult]: At program point initENTRY(lines 9 16) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-04 13:42:14,142 INFO L268 CegarLoopResult]: For program point initEXIT(lines 9 16) no Hoare annotation was computed. [2020-09-04 13:42:14,142 INFO L268 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-09-04 13:42:14,143 INFO L264 CegarLoopResult]: At program point L12-3(lines 12 15) the Hoare annotation is: (let ((.cse0 (= init_~a.offset |init_#in~a.offset|)) (.cse1 (= init_~a.base |init_#in~a.base|)) (.cse2 (= |init_#in~size| init_~size))) (or (and .cse0 (exists ((v_init_~i~0_8 Int)) (and (not (= (select (select |#memory_$Pointer$.base| |init_#in~a.base|) (+ |init_#in~a.offset| (* v_init_~i~0_8 4))) 0)) (< v_init_~i~0_8 init_~size) (<= init_~i~0 (+ v_init_~i~0_8 1)))) .cse1 .cse2) (and .cse0 (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) .cse1 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|) (<= init_~i~0 0) .cse2))) [2020-09-04 13:42:14,143 INFO L268 CegarLoopResult]: For program point L12-4(lines 9 16) no Hoare annotation was computed. [2020-09-04 13:42:14,143 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:42:14,143 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 13:42:14,143 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:42:14,144 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:42:14,145 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 13:42:14,145 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:42:14,145 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:42:14,145 INFO L268 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-09-04 13:42:14,145 INFO L268 CegarLoopResult]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2020-09-04 13:42:14,146 INFO L264 CegarLoopResult]: At program point L31-3(lines 31 35) the Hoare annotation is: (<= 1 main_~flag~0) [2020-09-04 13:42:14,146 INFO L268 CegarLoopResult]: For program point L31-4(lines 31 35) no Hoare annotation was computed. [2020-09-04 13:42:14,148 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 37) no Hoare annotation was computed. [2020-09-04 13:42:14,148 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-09-04 13:42:14,148 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-04 13:42:14,148 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 37) no Hoare annotation was computed. [2020-09-04 13:42:14,149 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: false [2020-09-04 13:42:14,150 INFO L268 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-09-04 13:42:14,150 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 37) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-04 13:42:14,151 INFO L268 CegarLoopResult]: For program point L26(lines 26 29) no Hoare annotation was computed. [2020-09-04 13:42:14,151 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 30) no Hoare annotation was computed. [2020-09-04 13:42:14,151 INFO L264 CegarLoopResult]: At program point L24-3(lines 24 30) the Hoare annotation is: (or (<= 1 main_~flag~0) (and (exists ((v_init_~i~0_8 Int)) (and (< v_init_~i~0_8 100000) (not (= (select (select |#memory_$Pointer$.base| |main_~#a~0.base|) (+ (* v_init_~i~0_8 4) |main_~#a~0.offset|)) 0)) (<= 99999 v_init_~i~0_8))) (<= main_~i~1 99999))) [2020-09-04 13:42:14,151 INFO L268 CegarLoopResult]: For program point L24-4(lines 24 30) no Hoare annotation was computed. [2020-09-04 13:42:14,152 INFO L268 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-09-04 13:42:14,152 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2020-09-04 13:42:14,152 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2020-09-04 13:42:14,152 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-04 13:42:14,152 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-04 13:42:14,153 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-09-04 13:42:14,172 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,173 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,175 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,175 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,180 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,181 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-04 13:42:14,181 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-04 13:42:14,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-04 13:42:14,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-04 13:42:14,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,186 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,186 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-04 13:42:14,186 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-04 13:42:14,187 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,188 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-04 13:42:14,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-04 13:42:14,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:42:14 BoogieIcfgContainer [2020-09-04 13:42:14,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:42:14,195 INFO L168 Benchmark]: Toolchain (without parser) took 6763.62 ms. Allocated memory was 146.8 MB in the beginning and 272.1 MB in the end (delta: 125.3 MB). Free memory was 102.9 MB in the beginning and 197.9 MB in the end (delta: -95.0 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-09-04 13:42:14,196 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 13:42:14,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.66 ms. Allocated memory is still 146.8 MB. Free memory was 102.5 MB in the beginning and 92.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:42:14,202 INFO L168 Benchmark]: Boogie Preprocessor took 195.88 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 92.3 MB in the beginning and 182.1 MB in the end (delta: -89.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:42:14,203 INFO L168 Benchmark]: RCFGBuilder took 376.22 ms. Allocated memory is still 205.0 MB. Free memory was 182.1 MB in the beginning and 165.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-09-04 13:42:14,204 INFO L168 Benchmark]: TraceAbstraction took 5832.84 ms. Allocated memory was 205.0 MB in the beginning and 272.1 MB in the end (delta: 67.1 MB). Free memory was 164.7 MB in the beginning and 197.9 MB in the end (delta: -33.2 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:42:14,216 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 352.66 ms. Allocated memory is still 146.8 MB. Free memory was 102.5 MB in the beginning and 92.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 195.88 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 92.3 MB in the beginning and 182.1 MB in the end (delta: -89.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 376.22 ms. Allocated memory is still 205.0 MB. Free memory was 182.1 MB in the beginning and 165.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5832.84 ms. Allocated memory was 205.0 MB in the beginning and 272.1 MB in the end (delta: 67.1 MB). Free memory was 164.7 MB in the beginning and 197.9 MB in the end (delta: -33.2 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 31]: Loop Invariant Derived loop invariant: 1 <= flag - InvariantResult [Line: 24]: Loop Invariant [2020-09-04 13:42:14,233 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,233 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,234 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,234 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,234 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,237 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: 1 <= flag || ((\exists v_init_~i~0_8 : int :: (v_init_~i~0_8 < 100000 && !(#memory_$Pointer$[a][v_init_~i~0_8 * 4 + a] == 0)) && 99999 <= v_init_~i~0_8) && i <= 99999) - InvariantResult [Line: 12]: Loop Invariant [2020-09-04 13:42:14,245 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,245 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,245 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,245 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-04 13:42:14,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-04 13:42:14,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,246 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-04 13:42:14,247 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-04 13:42:14,248 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,249 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_init_~i~0_8,QUANTIFIED] [2020-09-04 13:42:14,250 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-04 13:42:14,250 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-04 13:42:14,251 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,251 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-04 13:42:14,251 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,251 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,252 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,252 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-04 13:42:14,252 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-04 13:42:14,252 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-04 13:42:14,252 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((a == a && (\exists v_init_~i~0_8 : int :: (!(#memory_$Pointer$[a][a + v_init_~i~0_8 * 4] == 0) && v_init_~i~0_8 < size) && i <= v_init_~i~0_8 + 1)) && a == a) && \old(size) == size) || (((((((a == a && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(unknown-#length-unknown) == unknown-#length-unknown) && a == a) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(\valid) == \valid) && i <= 0) && \old(size) == size) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 179 SDtfs, 128 SDslu, 364 SDs, 0 SdLazy, 473 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=6, 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, 7 MinimizatonAttempts, 42 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 17 PreInvPairs, 27 NumberOfFragments, 130 HoareAnnotationTreeSize, 17 FomulaSimplifications, 212 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 314 NumberOfCodeBlocks, 309 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 302 ConstructedInterpolants, 11 QuantifiedInterpolants, 30763 SizeOfPredicates, 14 NumberOfNonLiveVariables, 586 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 36/70 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...