/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-04-30 23:21:04,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-30 23:21:04,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-30 23:21:04,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-30 23:21:04,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-30 23:21:04,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-30 23:21:04,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-30 23:21:04,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-30 23:21:04,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-30 23:21:04,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-30 23:21:04,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-30 23:21:04,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-30 23:21:04,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-30 23:21:04,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-30 23:21:04,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-30 23:21:04,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-30 23:21:04,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-30 23:21:04,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-30 23:21:04,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-30 23:21:04,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-30 23:21:04,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-30 23:21:04,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-30 23:21:04,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-30 23:21:04,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-30 23:21:04,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-30 23:21:04,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-30 23:21:04,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-30 23:21:04,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-30 23:21:04,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-30 23:21:04,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-30 23:21:04,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-30 23:21:04,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-30 23:21:04,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-30 23:21:04,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-30 23:21:04,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-30 23:21:04,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-30 23:21:04,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-30 23:21:04,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-30 23:21:04,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-30 23:21:04,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-30 23:21:04,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-30 23:21:04,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-04-30 23:21:04,941 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-30 23:21:04,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-30 23:21:04,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-30 23:21:04,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-30 23:21:04,944 INFO L138 SettingsManager]: * Use SBE=true [2021-04-30 23:21:04,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-30 23:21:04,944 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-30 23:21:04,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-30 23:21:04,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-30 23:21:04,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-30 23:21:04,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-30 23:21:04,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-30 23:21:04,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-30 23:21:04,945 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-30 23:21:04,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-30 23:21:04,945 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-30 23:21:04,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-30 23:21:04,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-30 23:21:04,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-30 23:21:04,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-30 23:21:04,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-30 23:21:04,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-30 23:21:04,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-30 23:21:04,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-30 23:21:04,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-30 23:21:04,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-30 23:21:04,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-30 23:21:04,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-04-30 23:21:04,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-30 23:21:05,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-30 23:21:05,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-30 23:21:05,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-30 23:21:05,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-30 23:21:05,247 INFO L275 PluginConnector]: CDTParser initialized [2021-04-30 23:21:05,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-04-30 23:21:05,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e731dfcc1/3f2bc09e253f48f6a3f604c5b9207fd6/FLAG0886b1144 [2021-04-30 23:21:05,774 INFO L306 CDTParser]: Found 1 translation units. [2021-04-30 23:21:05,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-04-30 23:21:05,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e731dfcc1/3f2bc09e253f48f6a3f604c5b9207fd6/FLAG0886b1144 [2021-04-30 23:21:05,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e731dfcc1/3f2bc09e253f48f6a3f604c5b9207fd6 [2021-04-30 23:21:05,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-30 23:21:05,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-30 23:21:05,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-30 23:21:05,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-30 23:21:05,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-30 23:21:05,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 11:21:05" (1/1) ... [2021-04-30 23:21:05,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482baa3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:05, skipping insertion in model container [2021-04-30 23:21:05,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 11:21:05" (1/1) ... [2021-04-30 23:21:05,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-30 23:21:05,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-30 23:21:05,938 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2021-04-30 23:21:05,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-30 23:21:05,986 INFO L203 MainTranslator]: Completed pre-run [2021-04-30 23:21:05,999 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2021-04-30 23:21:06,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-30 23:21:06,011 INFO L208 MainTranslator]: Completed translation [2021-04-30 23:21:06,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:06 WrapperNode [2021-04-30 23:21:06,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-30 23:21:06,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-30 23:21:06,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-30 23:21:06,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-30 23:21:06,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:06" (1/1) ... [2021-04-30 23:21:06,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:06" (1/1) ... [2021-04-30 23:21:06,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:06" (1/1) ... [2021-04-30 23:21:06,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:06" (1/1) ... [2021-04-30 23:21:06,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:06" (1/1) ... [2021-04-30 23:21:06,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:06" (1/1) ... [2021-04-30 23:21:06,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:06" (1/1) ... [2021-04-30 23:21:06,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-30 23:21:06,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-30 23:21:06,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-30 23:21:06,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-30 23:21:06,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:06" (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 [2021-04-30 23:21:06,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-30 23:21:06,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-30 23:21:06,138 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-30 23:21:06,138 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-30 23:21:06,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-30 23:21:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-30 23:21:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-30 23:21:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-30 23:21:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-30 23:21:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-30 23:21:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-30 23:21:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-30 23:21:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-30 23:21:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-30 23:21:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-30 23:21:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-30 23:21:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-30 23:21:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-30 23:21:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-30 23:21:06,356 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-30 23:21:06,356 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-30 23:21:06,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 11:21:06 BoogieIcfgContainer [2021-04-30 23:21:06,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-30 23:21:06,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-30 23:21:06,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-30 23:21:06,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-30 23:21:06,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 11:21:05" (1/3) ... [2021-04-30 23:21:06,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d83f158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 11:21:06, skipping insertion in model container [2021-04-30 23:21:06,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 11:21:06" (2/3) ... [2021-04-30 23:21:06,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d83f158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 11:21:06, skipping insertion in model container [2021-04-30 23:21:06,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 11:21:06" (3/3) ... [2021-04-30 23:21:06,362 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2021-04-30 23:21:06,382 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-30 23:21:06,385 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-30 23:21:06,395 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-30 23:21:06,415 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-30 23:21:06,415 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-30 23:21:06,415 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-30 23:21:06,415 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-30 23:21:06,415 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-30 23:21:06,416 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-30 23:21:06,416 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-30 23:21:06,416 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-30 23:21:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-30 23:21:06,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-04-30 23:21:06,430 INFO L511 BasicCegarLoop]: Found error trace [2021-04-30 23:21:06,431 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-30 23:21:06,431 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-30 23:21:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-30 23:21:06,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1488249160, now seen corresponding path program 1 times [2021-04-30 23:21:06,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-30 23:21:06,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457045994] [2021-04-30 23:21:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-30 23:21:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:21:06,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:06,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:06,600 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-04-30 23:21:06,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-30 23:21:06,645 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-04-30 23:21:06,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-30 23:21:06,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:06,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-30 23:21:06,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:06,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:06,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-30 23:21:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:21:06,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:06,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:06,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-30 23:21:06,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-04-30 23:21:06,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457045994] [2021-04-30 23:21:06,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457045994] provided 1 perfect and 0 imperfect interpolant sequences [2021-04-30 23:21:06,767 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-30 23:21:06,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-30 23:21:06,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339918011] [2021-04-30 23:21:06,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-30 23:21:06,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-30 23:21:06,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-30 23:21:06,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-30 23:21:06,779 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:21:06,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-30 23:21:06,998 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2021-04-30 23:21:06,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-30 23:21:07,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-04-30 23:21:07,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-30 23:21:07,004 INFO L225 Difference]: With dead ends: 32 [2021-04-30 23:21:07,004 INFO L226 Difference]: Without dead ends: 14 [2021-04-30 23:21:07,006 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 267.0ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-04-30 23:21:07,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-04-30 23:21:07,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-04-30 23:21:07,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:21:07,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-04-30 23:21:07,026 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-04-30 23:21:07,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-30 23:21:07,026 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-04-30 23:21:07,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:21:07,026 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-04-30 23:21:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-04-30 23:21:07,027 INFO L511 BasicCegarLoop]: Found error trace [2021-04-30 23:21:07,027 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-30 23:21:07,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-30 23:21:07,027 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-30 23:21:07,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-30 23:21:07,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1110855594, now seen corresponding path program 1 times [2021-04-30 23:21:07,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-30 23:21:07,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141773319] [2021-04-30 23:21:07,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-30 23:21:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:21:07,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-30 23:21:07,102 INFO L142 QuantifierPusher]: treesize reduction 6, result has 80.6 percent of original size [2021-04-30 23:21:07,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-30 23:21:07,131 INFO L142 QuantifierPusher]: treesize reduction 6, result has 77.8 percent of original size [2021-04-30 23:21:07,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-30 23:21:07,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-30 23:21:07,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-30 23:21:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:21:07,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-30 23:21:07,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-04-30 23:21:07,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141773319] [2021-04-30 23:21:07,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141773319] provided 0 perfect and 1 imperfect interpolant sequences [2021-04-30 23:21:07,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104547626] [2021-04-30 23:21:07,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-04-30 23:21:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-30 23:21:07,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 19 conjunts are in the unsatisfiable core [2021-04-30 23:21:07,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-04-30 23:21:07,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-30 23:21:07,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-30 23:21:07,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-30 23:21:07,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-30 23:21:07,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-30 23:21:07,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-30 23:21:07,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-30 23:21:07,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-30 23:21:07,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-30 23:21:07,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,325 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-04-30 23:21:07,325 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-04-30 23:21:07,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-30 23:21:07,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-30 23:21:07,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-30 23:21:07,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-30 23:21:07,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-30 23:21:07,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-30 23:21:07,348 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-04-30 23:21:07,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-30 23:21:07,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-30 23:21:07,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-30 23:21:07,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104547626] provided 0 perfect and 1 imperfect interpolant sequences [2021-04-30 23:21:07,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-04-30 23:21:07,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-04-30 23:21:07,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821681166] [2021-04-30 23:21:07,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-30 23:21:07,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-30 23:21:07,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-30 23:21:07,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-04-30 23:21:07,352 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:21:07,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-30 23:21:07,645 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-04-30 23:21:07,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-30 23:21:07,645 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-04-30 23:21:07,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-30 23:21:07,645 INFO L225 Difference]: With dead ends: 17 [2021-04-30 23:21:07,645 INFO L226 Difference]: Without dead ends: 0 [2021-04-30 23:21:07,646 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 370.8ms TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-04-30 23:21:07,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-30 23:21:07,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-30 23:21:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-30 23:21:07,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-30 23:21:07,647 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-04-30 23:21:07,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-30 23:21:07,648 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-30 23:21:07,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-30 23:21:07,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-30 23:21:07,648 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-30 23:21:07,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-04-30 23:21:07,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-04-30 23:21:07,958 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-04-30 23:21:07,958 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-04-30 23:21:07,958 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-04-30 23:21:07,958 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-04-30 23:21:07,958 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__return_72~0 |old(~__return_72~0)|) (= |old(#valid)| |#valid|)) [2021-04-30 23:21:07,958 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-04-30 23:21:07,958 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-04-30 23:21:07,958 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-04-30 23:21:07,958 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-04-30 23:21:07,958 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-04-30 23:21:07,958 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 53) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 13 70) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point L25(lines 25 68) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 13 70) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point L53(line 53) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point L19(lines 19 69) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point L51(lines 51 60) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 13 70) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L198 CegarLoopUtils]: For program point L44(lines 44 66) no Hoare annotation was computed. [2021-04-30 23:21:07,959 INFO L194 CegarLoopUtils]: At program point L40(lines 30 68) the Hoare annotation is: (let ((.cse1 (+ main_~main__i~0 main_~main__y~0)) (.cse0 (+ main_~main__j~0 main_~main__x~0))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-04-30 23:21:07,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 11:21:07 BoogieIcfgContainer [2021-04-30 23:21:07,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-30 23:21:07,969 INFO L168 Benchmark]: Toolchain (without parser) took 2167.84 ms. Allocated memory is still 174.1 MB. Free memory was 137.3 MB in the beginning and 121.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 8.0 GB. [2021-04-30 23:21:07,969 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 174.1 MB. Free memory was 154.1 MB in the beginning and 154.0 MB in the end (delta: 121.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-30 23:21:07,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.55 ms. Allocated memory is still 174.1 MB. Free memory was 137.1 MB in the beginning and 155.6 MB in the end (delta: -18.4 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. [2021-04-30 23:21:07,970 INFO L168 Benchmark]: Boogie Preprocessor took 26.92 ms. Allocated memory is still 174.1 MB. Free memory was 155.6 MB in the beginning and 154.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-04-30 23:21:07,970 INFO L168 Benchmark]: RCFGBuilder took 318.07 ms. Allocated memory is still 174.1 MB. Free memory was 154.0 MB in the beginning and 139.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-04-30 23:21:07,970 INFO L168 Benchmark]: TraceAbstraction took 1609.93 ms. Allocated memory is still 174.1 MB. Free memory was 138.8 MB in the beginning and 121.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 8.0 GB. [2021-04-30 23:21:07,971 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 174.1 MB. Free memory was 154.1 MB in the beginning and 154.0 MB in the end (delta: 121.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 207.55 ms. Allocated memory is still 174.1 MB. Free memory was 137.1 MB in the beginning and 155.6 MB in the end (delta: -18.4 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.92 ms. Allocated memory is still 174.1 MB. Free memory was 155.6 MB in the beginning and 154.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 318.07 ms. Allocated memory is still 174.1 MB. Free memory was 154.0 MB in the beginning and 139.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1609.93 ms. Allocated memory is still 174.1 MB. Free memory was 138.8 MB in the beginning and 121.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1450.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 5.4ms, AutomataDifference: 529.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 93.3ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23 SDtfs, 42 SDslu, 52 SDs, 0 SdLazy, 92 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 637.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 12.4ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 60 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 25.7ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 186 FormulaSimplificationTreeSizeReductionInter, 62.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 17.6ms SsaConstructionTime, 68.6ms SatisfiabilityAnalysisTime, 499.3ms InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 245 SizeOfPredicates, 5 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (\old(__return_72) == __return_72 && main__j + main__x <= main__i + main__y) && main__i + main__y <= main__j + main__x RESULT: Ultimate proved your program to be correct! Received shutdown request...