/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/nec40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:44:55,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:44:55,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:44:55,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:44:55,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:44:55,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:44:55,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:44:55,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:44:55,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:44:55,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:44:55,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:44:55,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:44:55,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:44:55,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:44:55,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:44:55,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:44:55,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:44:55,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:44:55,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:44:55,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:44:55,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:44:55,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:44:55,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:44:55,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:44:55,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 17:44:55,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 17:44:55,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 17:44:55,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 17:44:55,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 17:44:55,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 17:44:55,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 17:44:55,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 17:44:55,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 17:44:55,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 17:44:55,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 17:44:55,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 17:44:55,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 17:44:55,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 17:44:55,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:44:55,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:44:55,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:44:55,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 17:44:55,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:44:55,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:44:55,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:44:55,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:44:55,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:44:55,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:44:55,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:44:55,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:44:55,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:44:55,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:44:55,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:44:55,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:44:55,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:44:55,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:44:55,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:44:55,171 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:44:55,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:44:55,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:44:55,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:44:55,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:44:55,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:44:55,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:44:55,173 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:44:55,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:44:55,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:44:55,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:44:55,688 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:44:55,689 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:44:55,690 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec40.c [2020-09-04 17:44:55,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/017a3173e/9adc58f464b64c2798b252890a0b62b1/FLAGd71c37cc7 [2020-09-04 17:44:56,340 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:44:56,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/nec40.c [2020-09-04 17:44:56,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/017a3173e/9adc58f464b64c2798b252890a0b62b1/FLAGd71c37cc7 [2020-09-04 17:44:56,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/017a3173e/9adc58f464b64c2798b252890a0b62b1 [2020-09-04 17:44:56,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:44:56,690 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:44:56,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:44:56,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:44:56,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:44:56,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:44:56" (1/1) ... [2020-09-04 17:44:56,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:56, skipping insertion in model container [2020-09-04 17:44:56,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:44:56" (1/1) ... [2020-09-04 17:44:56,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:44:56,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:44:56,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:44:56,980 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:44:57,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:44:57,031 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:44:57,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:57 WrapperNode [2020-09-04 17:44:57,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:44:57,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:44:57,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:44:57,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:44:57,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:57" (1/1) ... [2020-09-04 17:44:57,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:57" (1/1) ... [2020-09-04 17:44:57,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:57" (1/1) ... [2020-09-04 17:44:57,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:57" (1/1) ... [2020-09-04 17:44:57,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:57" (1/1) ... [2020-09-04 17:44:57,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:57" (1/1) ... [2020-09-04 17:44:57,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:57" (1/1) ... [2020-09-04 17:44:57,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:44:57,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:44:57,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:44:57,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:44:57,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:57" (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 17:44:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:44:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:44:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:44:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:44:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:44:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:44:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:44:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:44:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 17:44:57,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 17:44:57,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:44:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 17:44:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:44:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 17:44:57,573 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:44:57,573 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 17:44:57,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:44:57 BoogieIcfgContainer [2020-09-04 17:44:57,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:44:57,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:44:57,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:44:57,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:44:57,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:44:56" (1/3) ... [2020-09-04 17:44:57,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39319b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:44:57, skipping insertion in model container [2020-09-04 17:44:57,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:57" (2/3) ... [2020-09-04 17:44:57,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39319b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:44:57, skipping insertion in model container [2020-09-04 17:44:57,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:44:57" (3/3) ... [2020-09-04 17:44:57,590 INFO L109 eAbstractionObserver]: Analyzing ICFG nec40.c [2020-09-04 17:44:57,600 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:44:57,609 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:44:57,632 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:44:57,663 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:44:57,663 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:44:57,663 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:44:57,663 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:44:57,663 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:44:57,663 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:44:57,664 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:44:57,664 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:44:57,680 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-09-04 17:44:57,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-04 17:44:57,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:57,695 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] [2020-09-04 17:44:57,696 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:57,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:57,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1729523867, now seen corresponding path program 1 times [2020-09-04 17:44:57,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:57,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630404868] [2020-09-04 17:44:57,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:57,788 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:58,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:58,052 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 17:44:58,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630404868] [2020-09-04 17:44:58,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:58,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 17:44:58,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934104500] [2020-09-04 17:44:58,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 17:44:58,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:58,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 17:44:58,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 17:44:58,097 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2020-09-04 17:44:58,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:58,286 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2020-09-04 17:44:58,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 17:44:58,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-09-04 17:44:58,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:58,301 INFO L225 Difference]: With dead ends: 64 [2020-09-04 17:44:58,301 INFO L226 Difference]: Without dead ends: 38 [2020-09-04 17:44:58,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 17:44:58,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-04 17:44:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-04 17:44:58,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-04 17:44:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2020-09-04 17:44:58,366 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 28 [2020-09-04 17:44:58,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:58,367 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2020-09-04 17:44:58,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 17:44:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2020-09-04 17:44:58,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-04 17:44:58,369 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:58,369 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] [2020-09-04 17:44:58,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:44:58,370 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:58,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:58,371 INFO L82 PathProgramCache]: Analyzing trace with hash 736321097, now seen corresponding path program 1 times [2020-09-04 17:44:58,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:58,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715000846] [2020-09-04 17:44:58,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:58,375 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:58,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:58,515 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 17:44:58,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715000846] [2020-09-04 17:44:58,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:58,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 17:44:58,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499798082] [2020-09-04 17:44:58,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 17:44:58,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:58,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 17:44:58,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 17:44:58,519 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 4 states. [2020-09-04 17:44:58,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:58,693 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2020-09-04 17:44:58,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 17:44:58,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-09-04 17:44:58,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:58,696 INFO L225 Difference]: With dead ends: 57 [2020-09-04 17:44:58,696 INFO L226 Difference]: Without dead ends: 46 [2020-09-04 17:44:58,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 17:44:58,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-04 17:44:58,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-09-04 17:44:58,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-04 17:44:58,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2020-09-04 17:44:58,712 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 30 [2020-09-04 17:44:58,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:58,713 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2020-09-04 17:44:58,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 17:44:58,713 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2020-09-04 17:44:58,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-04 17:44:58,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:58,715 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-09-04 17:44:58,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:44:58,715 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:58,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:58,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1137669723, now seen corresponding path program 1 times [2020-09-04 17:44:58,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:58,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636206474] [2020-09-04 17:44:58,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:58,756 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:58,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:59,018 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 17:44:59,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636206474] [2020-09-04 17:44:59,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:59,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 17:44:59,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482058779] [2020-09-04 17:44:59,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 17:44:59,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:59,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 17:44:59,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 17:44:59,022 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 5 states. [2020-09-04 17:44:59,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:59,128 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-09-04 17:44:59,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 17:44:59,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-09-04 17:44:59,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:59,130 INFO L225 Difference]: With dead ends: 40 [2020-09-04 17:44:59,130 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 17:44:59,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:44:59,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 17:44:59,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 17:44:59,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 17:44:59,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 17:44:59,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-09-04 17:44:59,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:59,133 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 17:44:59,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 17:44:59,133 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 17:44:59,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 17:44:59,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:44:59,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 17:44:59,546 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 17:44:59,547 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 17:44:59,547 INFO L264 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-09-04 17:44:59,547 INFO L264 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) [2020-09-04 17:44:59,547 INFO L271 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2020-09-04 17:44:59,547 INFO L264 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-09-04 17:44:59,548 INFO L271 CegarLoopResult]: At program point L11-1(line 11) the Hoare annotation is: true [2020-09-04 17:44:59,548 INFO L264 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-09-04 17:44:59,548 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~j~0 |old(~j~0)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#y~0.offset| |old(~#y~0.offset)|) (= ~i~0 |old(~i~0)|) (= |old(#length)| |#length|) (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |~#y~0.base| |old(~#y~0.base)|)) [2020-09-04 17:44:59,548 INFO L264 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) [2020-09-04 17:44:59,549 INFO L264 CegarLoopResult]: At program point L11-3(line 11) the Hoare annotation is: (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) [2020-09-04 17:44:59,549 INFO L264 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-09-04 17:44:59,549 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:44:59,549 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-09-04 17:44:59,549 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 17:44:59,550 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:44:59,550 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,550 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 14 29) the Hoare annotation is: true [2020-09-04 17:44:59,550 INFO L264 CegarLoopResult]: At program point L25-1(lines 25 26) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,551 INFO L264 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,551 INFO L271 CegarLoopResult]: At program point L25-3(line 25) the Hoare annotation is: true [2020-09-04 17:44:59,551 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,551 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,551 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= |old(~i~0)| 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= ~i~0 0)))) [2020-09-04 17:44:59,552 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,552 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (and (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|) (= ~i~0 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,552 INFO L264 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= |old(~i~0)| 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= ~i~0 0)))) [2020-09-04 17:44:59,553 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 14 29) the Hoare annotation is: true [2020-09-04 17:44:59,553 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 14 29) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (and (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|) (= ~i~0 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,553 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,553 INFO L271 CegarLoopResult]: At program point L24(lines 24 26) the Hoare annotation is: true [2020-09-04 17:44:59,553 INFO L264 CegarLoopResult]: At program point L22(lines 14 29) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (= ~i~0 0) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,554 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,554 INFO L264 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,554 INFO L264 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,554 INFO L264 CegarLoopResult]: At program point L18-1(lines 18 21) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= |main_#t~mem1| 0) (= ~i~0 0)) (not (= |old(~i~0)| 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))))) [2020-09-04 17:44:59,555 INFO L264 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (= ~i~0 0) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,555 INFO L264 CegarLoopResult]: At program point L18-4(line 18) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,555 INFO L264 CegarLoopResult]: At program point L18-5(lines 18 21) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= |old(~i~0)| 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= ~i~0 0)))) [2020-09-04 17:44:59,555 INFO L264 CegarLoopResult]: At program point L18-6(lines 18 21) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (= ~i~0 0) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-09-04 17:44:59,556 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-04 17:44:59,556 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 3 8) the Hoare annotation is: true [2020-09-04 17:44:59,556 INFO L271 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: true [2020-09-04 17:44:59,556 INFO L271 CegarLoopResult]: At program point L4(lines 4 6) the Hoare annotation is: true [2020-09-04 17:44:59,556 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) the Hoare annotation is: true [2020-09-04 17:44:59,557 INFO L271 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2020-09-04 17:44:59,571 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-09-04 17:44:59,577 INFO L168 Benchmark]: Toolchain (without parser) took 2887.14 ms. Allocated memory was 146.8 MB in the beginning and 233.8 MB in the end (delta: 87.0 MB). Free memory was 104.6 MB in the beginning and 124.0 MB in the end (delta: -19.4 MB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:59,578 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 146.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-04 17:44:59,579 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.59 ms. Allocated memory is still 146.8 MB. Free memory was 104.4 MB in the beginning and 94.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:59,580 INFO L168 Benchmark]: Boogie Preprocessor took 133.72 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 94.0 MB in the beginning and 181.3 MB in the end (delta: -87.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:59,581 INFO L168 Benchmark]: RCFGBuilder took 413.02 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 165.3 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:59,582 INFO L168 Benchmark]: TraceAbstraction took 1992.64 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 164.7 MB in the beginning and 124.0 MB in the end (delta: 40.7 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:59,590 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 146.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.59 ms. Allocated memory is still 146.8 MB. Free memory was 104.4 MB in the beginning and 94.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.72 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 94.0 MB in the beginning and 181.3 MB in the end (delta: -87.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 413.02 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 165.3 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1992.64 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 164.7 MB in the beginning and 124.0 MB in the end (delta: 40.7 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...