/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/n.c40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:16:39,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:16:39,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:16:39,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 00:16:39,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 00:16:39,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 00:16:39,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 00:16:39,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 00:16:39,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 00:16:39,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 00:16:39,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 00:16:39,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 00:16:39,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 00:16:39,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 00:16:39,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 00:16:39,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 00:16:39,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 00:16:39,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 00:16:39,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 00:16:39,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 00:16:39,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 00:16:39,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 00:16:39,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 00:16:39,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 00:16:39,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 00:16:39,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 00:16:39,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 00:16:39,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 00:16:39,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 00:16:39,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 00:16:39,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 00:16:39,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 00:16:39,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 00:16:39,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 00:16:39,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 00:16:39,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 00:16:39,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 00:16:39,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 00:16:39,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 00:16:39,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 00:16:39,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 00:16:39,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:16:39,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:16:39,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:16:39,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:16:39,908 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:16:39,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:16:39,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:16:39,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:16:39,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:16:39,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:16:39,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:16:39,909 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:16:39,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:16:39,910 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:16:39,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:16:39,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:16:39,910 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:16:39,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:16:39,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:16:39,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:16:39,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:16:39,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:16:39,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:16:39,912 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:16:40,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:16:40,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:16:40,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:16:40,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:16:40,373 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:16:40,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c40.c [2021-02-24 00:16:40,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/077236e07/26f13995ea1847f8a27e45658a730fc9/FLAGc9c7a1a90 [2021-02-24 00:16:41,117 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:16:41,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c [2021-02-24 00:16:41,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/077236e07/26f13995ea1847f8a27e45658a730fc9/FLAGc9c7a1a90 [2021-02-24 00:16:41,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/077236e07/26f13995ea1847f8a27e45658a730fc9 [2021-02-24 00:16:41,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:16:41,494 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:16:41,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:16:41,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:16:41,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:16:41,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:16:41" (1/1) ... [2021-02-24 00:16:41,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d98755e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41, skipping insertion in model container [2021-02-24 00:16:41,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:16:41" (1/1) ... [2021-02-24 00:16:41,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:16:41,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:16:41,681 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c[498,511] [2021-02-24 00:16:41,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:16:41,702 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:16:41,721 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c[498,511] [2021-02-24 00:16:41,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:16:41,742 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:16:41,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41 WrapperNode [2021-02-24 00:16:41,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:16:41,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:16:41,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:16:41,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:16:41,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41" (1/1) ... [2021-02-24 00:16:41,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41" (1/1) ... [2021-02-24 00:16:41,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41" (1/1) ... [2021-02-24 00:16:41,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41" (1/1) ... [2021-02-24 00:16:41,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41" (1/1) ... [2021-02-24 00:16:41,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41" (1/1) ... [2021-02-24 00:16:41,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41" (1/1) ... [2021-02-24 00:16:41,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:16:41,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:16:41,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:16:41,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:16:41,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:16:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:16:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:16:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:16:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:16:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:16:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:16:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:16:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:16:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 00:16:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:16:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:16:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:16:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:16:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:16:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:16:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:16:42,472 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:16:42,473 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 00:16:42,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:16:42 BoogieIcfgContainer [2021-02-24 00:16:42,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:16:42,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:16:42,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:16:42,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:16:42,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:16:41" (1/3) ... [2021-02-24 00:16:42,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2512e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:16:42, skipping insertion in model container [2021-02-24 00:16:42,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:16:41" (2/3) ... [2021-02-24 00:16:42,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2512e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:16:42, skipping insertion in model container [2021-02-24 00:16:42,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:16:42" (3/3) ... [2021-02-24 00:16:42,493 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c40.c [2021-02-24 00:16:42,501 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:16:42,507 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:16:42,533 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:16:42,575 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:16:42,576 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:16:42,576 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:16:42,576 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:16:42,576 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:16:42,576 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:16:42,576 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:16:42,577 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:16:42,599 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2021-02-24 00:16:42,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-24 00:16:42,619 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:16:42,620 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] [2021-02-24 00:16:42,622 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:16:42,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:16:42,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1065949594, now seen corresponding path program 1 times [2021-02-24 00:16:42,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:16:42,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010377789] [2021-02-24 00:16:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:16:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:16:42,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:42,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:16:42,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:42,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:16:43,174 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-24 00:16:43,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:16:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:16:43,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:43,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:16:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:16:43,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010377789] [2021-02-24 00:16:43,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:16:43,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 00:16:43,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121158637] [2021-02-24 00:16:43,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 00:16:43,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:16:43,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 00:16:43,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:16:43,290 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 3 states. [2021-02-24 00:16:43,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:16:43,432 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2021-02-24 00:16:43,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 00:16:43,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2021-02-24 00:16:43,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:16:43,445 INFO L225 Difference]: With dead ends: 60 [2021-02-24 00:16:43,445 INFO L226 Difference]: Without dead ends: 40 [2021-02-24 00:16:43,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:16:43,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-02-24 00:16:43,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-02-24 00:16:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-02-24 00:16:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-02-24 00:16:43,506 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 30 [2021-02-24 00:16:43,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:16:43,506 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-02-24 00:16:43,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 00:16:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-02-24 00:16:43,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 00:16:43,508 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:16:43,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:16:43,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:16:43,509 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:16:43,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:16:43,510 INFO L82 PathProgramCache]: Analyzing trace with hash -896359144, now seen corresponding path program 1 times [2021-02-24 00:16:43,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:16:43,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419288588] [2021-02-24 00:16:43,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:16:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:16:43,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:43,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:16:43,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:43,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:16:43,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:43,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:16:43,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:16:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:16:43,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:43,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:16:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:16:43,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419288588] [2021-02-24 00:16:43,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:16:43,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:16:43,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901751243] [2021-02-24 00:16:43,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:16:43,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:16:43,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:16:43,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:16:43,660 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 4 states. [2021-02-24 00:16:43,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:16:43,844 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-02-24 00:16:43,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 00:16:43,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2021-02-24 00:16:43,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:16:43,847 INFO L225 Difference]: With dead ends: 56 [2021-02-24 00:16:43,847 INFO L226 Difference]: Without dead ends: 48 [2021-02-24 00:16:43,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:16:43,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-02-24 00:16:43,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2021-02-24 00:16:43,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-02-24 00:16:43,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-02-24 00:16:43,861 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 32 [2021-02-24 00:16:43,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:16:43,861 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-02-24 00:16:43,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:16:43,862 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-02-24 00:16:43,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-02-24 00:16:43,863 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:16:43,863 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, 1, 1] [2021-02-24 00:16:43,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:16:43,864 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:16:43,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:16:43,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1266891123, now seen corresponding path program 1 times [2021-02-24 00:16:43,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:16:43,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477917130] [2021-02-24 00:16:43,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:16:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:16:44,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:44,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 00:16:44,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:44,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 00:16:44,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:44,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-24 00:16:44,038 WARN L141 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-02-24 00:16:44,045 WARN L147 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size 17 [2021-02-24 00:16:44,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:44,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:16:44,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:44,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:16:44,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:16:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:16:44,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:44,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:16:44,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:44,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:16:44,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:44,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 00:16:44,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:16:44,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 00:16:44,213 WARN L141 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-02-24 00:16:44,216 WARN L147 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size 11 [2021-02-24 00:16:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:16:44,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477917130] [2021-02-24 00:16:44,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:16:44,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 00:16:44,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074679014] [2021-02-24 00:16:44,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:16:44,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:16:44,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:16:44,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:16:44,251 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 8 states. [2021-02-24 00:16:44,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:16:44,480 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-02-24 00:16:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 00:16:44,481 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2021-02-24 00:16:44,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:16:44,481 INFO L225 Difference]: With dead ends: 42 [2021-02-24 00:16:44,482 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:16:44,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-02-24 00:16:44,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:16:44,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:16:44,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:16:44,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:16:44,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2021-02-24 00:16:44,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:16:44,484 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:16:44,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:16:44,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:16:44,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:16:44,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:16:44,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:16:45,039 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-24 00:16:45,039 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-24 00:16:45,039 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-24 00:16:45,040 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-24 00:16:45,040 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-24 00:16:45,040 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:16:45,040 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-24 00:16:45,040 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 00:16:45,040 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-24 00:16:45,041 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= (select |#valid| |~#x~0.base|) 1) (not (= |~#x~0.base| |~#y~0.base|)) (= ~i~0 0)) [2021-02-24 00:16:45,041 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~j~0 |old(~j~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#memory_int| |old(#memory_int)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#y~0.offset| |old(~#y~0.offset)|) (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#y~0.base| |old(~#y~0.base)|)) [2021-02-24 00:16:45,041 INFO L185 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= (select |#valid| |~#x~0.base|) 1) (not (= |~#x~0.base| |~#y~0.base|))) [2021-02-24 00:16:45,041 INFO L185 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: (= (select |#valid| |~#x~0.base|) 1) [2021-02-24 00:16:45,042 INFO L185 CegarLoopUtils]: At program point L8-1(line 8) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= (select |#valid| |~#x~0.base|) 1) (not (= |~#x~0.base| |~#y~0.base|)) (= ~i~0 0)) [2021-02-24 00:16:45,042 INFO L185 CegarLoopUtils]: At program point L7-1(line 7) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= (select |#valid| |~#x~0.base|) 1)) [2021-02-24 00:16:45,042 INFO L185 CegarLoopUtils]: At program point L8-2(line 8) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= (select |#valid| |~#x~0.base|) 1) (not (= |~#x~0.base| |~#y~0.base|)) (= ~i~0 0)) [2021-02-24 00:16:45,043 INFO L185 CegarLoopUtils]: At program point L7-2(line 7) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= (select |#valid| |~#x~0.base|) 1) (not (= |~#x~0.base| |~#y~0.base|))) [2021-02-24 00:16:45,043 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-24 00:16:45,043 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-24 00:16:45,043 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= (select |#valid| |~#x~0.base|) 1) (not (= |~#x~0.base| |~#y~0.base|)) (= ~i~0 0)) [2021-02-24 00:16:45,043 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:16:45,044 INFO L185 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= (select |#valid| |~#x~0.base|) 1) (not (= |~#x~0.base| |~#y~0.base|)) (= ~i~0 0)) [2021-02-24 00:16:45,044 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:16:45,044 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:16:45,044 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 10 25) the Hoare annotation is: true [2021-02-24 00:16:45,044 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,045 INFO L185 CegarLoopUtils]: At program point L21-1(lines 21 22) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,045 INFO L185 CegarLoopUtils]: At program point L21-2(line 21) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,045 INFO L192 CegarLoopUtils]: At program point L21-4(line 21) the Hoare annotation is: true [2021-02-24 00:16:45,045 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,045 INFO L185 CegarLoopUtils]: At program point L15-1(line 15) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,046 INFO L185 CegarLoopUtils]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (= |~#x~0.base| |~#y~0.base|) (not (= |old(~i~0)| 0)) (not (= (select |#valid| |~#x~0.base|) 1)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= ~i~0 0)))) [2021-02-24 00:16:45,046 INFO L185 CegarLoopUtils]: At program point L15-2(line 15) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,046 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 10 25) the Hoare annotation is: true [2021-02-24 00:16:45,046 INFO L185 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: (or (= |~#x~0.base| |~#y~0.base|) (not (= |old(~i~0)| 0)) (not (= (select |#valid| |~#x~0.base|) 1)) (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|)))) [2021-02-24 00:16:45,047 INFO L185 CegarLoopUtils]: At program point L11-1(line 11) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (= |~#x~0.base| |~#y~0.base|) (not (= |old(~i~0)| 0)) (not (= (select |#valid| |~#x~0.base|) 1)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= ~i~0 0)))) [2021-02-24 00:16:45,047 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,047 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 10 25) the Hoare annotation is: (or (= |~#x~0.base| |~#y~0.base|) (not (= |old(~i~0)| 0)) (not (= (select |#valid| |~#x~0.base|) 1)) (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|)))) [2021-02-24 00:16:45,047 INFO L185 CegarLoopUtils]: At program point L22(line 22) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,048 INFO L185 CegarLoopUtils]: At program point L22-1(line 22) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,048 INFO L192 CegarLoopUtils]: At program point L20(lines 20 22) the Hoare annotation is: true [2021-02-24 00:16:45,048 INFO L185 CegarLoopUtils]: At program point L18(lines 10 25) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (= ~i~0 0) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,048 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,049 INFO L185 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,049 INFO L185 CegarLoopUtils]: At program point L16-2(line 16) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,049 INFO L185 CegarLoopUtils]: At program point L14-1(lines 14 17) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (= |~#x~0.base| |~#y~0.base|) (not (= |old(~i~0)| 0)) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= |main_#t~mem8| 0) (= ~i~0 0)) (not (= (select |#valid| |~#x~0.base|) 1)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))))) [2021-02-24 00:16:45,049 INFO L185 CegarLoopUtils]: At program point L14-2(line 14) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (= ~i~0 0) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,050 INFO L185 CegarLoopUtils]: At program point L14-4(line 14) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,050 INFO L185 CegarLoopUtils]: At program point L14-5(lines 14 17) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (= |~#x~0.base| |~#y~0.base|) (not (= |old(~i~0)| 0)) (not (= (select |#valid| |~#x~0.base|) 1)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= ~i~0 0)))) [2021-02-24 00:16:45,050 INFO L185 CegarLoopUtils]: At program point L14-6(lines 14 17) the Hoare annotation is: (or (not (= (select |#valid| |~#x~0.base|) 1)) (not (= |old(~i~0)| 0)) (= ~i~0 0) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|))) (= |~#y~0.base| |~#x~0.base|)) [2021-02-24 00:16:45,060 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:240) 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:558) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:256) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 00:16:45,064 INFO L168 Benchmark]: Toolchain (without parser) took 3579.77 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 131.8 MB in the beginning and 132.4 MB in the end (delta: -568.8 kB). Peak memory consumption was 84.0 MB. Max. memory is 8.0 GB. [2021-02-24 00:16:45,065 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 156.2 MB. Free memory is still 139.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:16:45,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.79 ms. Allocated memory is still 156.2 MB. Free memory was 130.7 MB in the beginning and 120.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-24 00:16:45,067 INFO L168 Benchmark]: Boogie Preprocessor took 43.48 ms. Allocated memory is still 156.2 MB. Free memory was 120.7 MB in the beginning and 119.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 00:16:45,067 INFO L168 Benchmark]: RCFGBuilder took 691.27 ms. Allocated memory is still 156.2 MB. Free memory was 119.0 MB in the beginning and 132.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 8.0 GB. [2021-02-24 00:16:45,068 INFO L168 Benchmark]: TraceAbstraction took 2578.27 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 131.7 MB in the beginning and 132.4 MB in the end (delta: -655.7 kB). Peak memory consumption was 83.3 MB. Max. memory is 8.0 GB. [2021-02-24 00:16:45,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 156.2 MB. Free memory is still 139.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 246.79 ms. Allocated memory is still 156.2 MB. Free memory was 130.7 MB in the beginning and 120.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.48 ms. Allocated memory is still 156.2 MB. Free memory was 120.7 MB in the beginning and 119.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 691.27 ms. Allocated memory is still 156.2 MB. Free memory was 119.0 MB in the beginning and 132.2 MB in the end (delta: -13.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2578.27 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 131.7 MB in the beginning and 132.4 MB in the end (delta: -655.7 kB). Peak memory consumption was 83.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: call to reach_error is unreachable For all program executions holds that call to reach_error is 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:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...