/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/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark43_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 08:17:25,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 08:17:25,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 08:17:25,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 08:17:25,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 08:17:25,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 08:17:25,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 08:17:25,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 08:17:25,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 08:17:25,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 08:17:25,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 08:17:25,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 08:17:25,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 08:17:25,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 08:17:25,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 08:17:25,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 08:17:25,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 08:17:25,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 08:17:25,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 08:17:25,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 08:17:25,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 08:17:25,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 08:17:25,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 08:17:25,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 08:17:26,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-01 08:17:26,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-01 08:17:26,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-01 08:17:26,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-01 08:17:26,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-01 08:17:26,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-01 08:17:26,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 08:17:26,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 08:17:26,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 08:17:26,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 08:17:26,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 08:17:26,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 08:17:26,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 08:17:26,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 08:17:26,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 08:17:26,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 08:17:26,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 08:17:26,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-01 08:17:26,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 08:17:26,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 08:17:26,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 08:17:26,094 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 08:17:26,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 08:17:26,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 08:17:26,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 08:17:26,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 08:17:26,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 08:17:26,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 08:17:26,096 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 08:17:26,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 08:17:26,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 08:17:26,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 08:17:26,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 08:17:26,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 08:17:26,097 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 08:17:26,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 08:17:26,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 08:17:26,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 08:17:26,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-01 08:17:26,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 08:17:26,098 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-01 08:17:26,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 08:17:26,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 08:17:26,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 08:17:26,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 08:17:26,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 08:17:26,693 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 08:17:26,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark43_conjunctive.i [2021-05-01 08:17:26,821 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0649d5e52/393945909f2b4960a5bc66eeb47b55dc/FLAG9e46f143c [2021-05-01 08:17:27,667 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 08:17:27,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark43_conjunctive.i [2021-05-01 08:17:27,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0649d5e52/393945909f2b4960a5bc66eeb47b55dc/FLAG9e46f143c [2021-05-01 08:17:27,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0649d5e52/393945909f2b4960a5bc66eeb47b55dc [2021-05-01 08:17:27,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 08:17:27,742 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 08:17:27,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 08:17:27,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 08:17:27,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 08:17:27,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 08:17:27" (1/1) ... [2021-05-01 08:17:27,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3fbfd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:27, skipping insertion in model container [2021-05-01 08:17:27,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 08:17:27" (1/1) ... [2021-05-01 08:17:27,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 08:17:27,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 08:17:28,019 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-zilu/benchmark43_conjunctive.i[873,886] [2021-05-01 08:17:28,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 08:17:28,058 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 08:17:28,087 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-zilu/benchmark43_conjunctive.i[873,886] [2021-05-01 08:17:28,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 08:17:28,123 INFO L208 MainTranslator]: Completed translation [2021-05-01 08:17:28,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:28 WrapperNode [2021-05-01 08:17:28,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 08:17:28,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 08:17:28,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 08:17:28,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 08:17:28,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:28" (1/1) ... [2021-05-01 08:17:28,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:28" (1/1) ... [2021-05-01 08:17:28,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:28" (1/1) ... [2021-05-01 08:17:28,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:28" (1/1) ... [2021-05-01 08:17:28,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:28" (1/1) ... [2021-05-01 08:17:28,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:28" (1/1) ... [2021-05-01 08:17:28,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:28" (1/1) ... [2021-05-01 08:17:28,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 08:17:28,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 08:17:28,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 08:17:28,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 08:17:28,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:28" (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 [2021-05-01 08:17:28,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 08:17:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 08:17:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 08:17:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 08:17:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 08:17:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 08:17:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-01 08:17:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-01 08:17:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 08:17:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 08:17:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 08:17:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-05-01 08:17:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 08:17:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 08:17:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 08:17:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 08:17:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 08:17:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 08:17:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 08:17:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 08:17:28,856 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 08:17:28,857 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-01 08:17:28,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 08:17:28 BoogieIcfgContainer [2021-05-01 08:17:28,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 08:17:28,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 08:17:28,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 08:17:28,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 08:17:28,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 08:17:27" (1/3) ... [2021-05-01 08:17:28,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4253c69b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 08:17:28, skipping insertion in model container [2021-05-01 08:17:28,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:17:28" (2/3) ... [2021-05-01 08:17:28,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4253c69b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 08:17:28, skipping insertion in model container [2021-05-01 08:17:28,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 08:17:28" (3/3) ... [2021-05-01 08:17:28,874 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark43_conjunctive.i [2021-05-01 08:17:28,879 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-01 08:17:28,883 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 08:17:28,915 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 08:17:28,965 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 08:17:28,965 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 08:17:28,965 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-01 08:17:28,966 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 08:17:28,966 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 08:17:28,966 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 08:17:28,966 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 08:17:28,966 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 08:17:28,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 08:17:29,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 08:17:29,001 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 08:17:29,001 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 08:17:29,002 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 08:17:29,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 08:17:29,007 INFO L82 PathProgramCache]: Analyzing trace with hash -304977768, now seen corresponding path program 1 times [2021-05-01 08:17:29,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 08:17:29,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546889132] [2021-05-01 08:17:29,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 08:17:29,187 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 08:17:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 08:17:29,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:29,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 08:17:29,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:29,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 08:17:29,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:29,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 08:17:29,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 08:17:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 08:17:29,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:29,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 08:17:29,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 08:17:29,555 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 08:17:29,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546889132] [2021-05-01 08:17:29,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [546889132] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 08:17:29,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 08:17:29,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 08:17:29,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26223377] [2021-05-01 08:17:29,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 08:17:29,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 08:17:29,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 08:17:29,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 08:17:29,609 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 08:17:29,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 08:17:29,871 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-05-01 08:17:29,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 08:17:29,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 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 12 [2021-05-01 08:17:29,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 08:17:29,879 INFO L225 Difference]: With dead ends: 33 [2021-05-01 08:17:29,879 INFO L226 Difference]: Without dead ends: 14 [2021-05-01 08:17:29,883 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 150.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 08:17:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-05-01 08:17:29,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-05-01 08:17:29,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 08:17:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-05-01 08:17:29,980 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-05-01 08:17:29,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 08:17:29,986 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-05-01 08:17:29,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 08:17:29,986 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-05-01 08:17:29,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-01 08:17:29,987 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 08:17:29,987 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 08:17:29,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 08:17:29,987 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 08:17:29,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 08:17:29,989 INFO L82 PathProgramCache]: Analyzing trace with hash -828987386, now seen corresponding path program 1 times [2021-05-01 08:17:29,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 08:17:29,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619568762] [2021-05-01 08:17:29,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 08:17:30,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 08:17:30,098 INFO L181 rdanLoopAcceleration]: Guard: Formula: (and (< v_main_~y~0_10 100) (< v_main_~x~0_10 100)) InVars {main_~x~0=v_main_~x~0_10, main_~y~0=v_main_~y~0_10} OutVars{main_~x~0=v_main_~x~0_10, main_~y~0=v_main_~y~0_10} AuxVars[] AssignedVars[] [2021-05-01 08:17:30,153 WARN L240 tifierPushTermWalker]: treesize reduction 6, result has 92.2 percent of original size [2021-05-01 08:17:30,193 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,225 INFO L732 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-05-01 08:17:30,236 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,238 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,269 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 08:17:30,275 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,284 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 08:17:30,290 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,293 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 08:17:30,298 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,325 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,330 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 08:17:30,347 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 08:17:30,354 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,357 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,361 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,382 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,386 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,390 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,399 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-05-01 08:17:30,410 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,415 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,419 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,424 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,431 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,435 WARN L245 tifierPushTermWalker]: treesize reduction 6, result has 92.2 percent of original size 71 [2021-05-01 08:17:30,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 08:17:30,472 INFO L212 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-05-01 08:17:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 08:17:30,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 08:17:30,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 08:17:30,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-05-01 08:17:30,725 INFO L142 QuantifierPusher]: treesize reduction 8, result has 57.9 percent of original size [2021-05-01 08:17:30,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 08:17:30,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 08:17:30,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 08:17:30,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 08:17:30,877 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-05-01 08:17:30,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 08:17:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 08:17:30,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 08:17:30,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 08:17:30,938 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.4 percent of original size [2021-05-01 08:17:30,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 08:17:30,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:30,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-05-01 08:17:30,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-05-01 08:17:33,113 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.4 percent of original size [2021-05-01 08:17:33,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 08:17:33,119 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.8 percent of original size [2021-05-01 08:17:33,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-05-01 08:17:33,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-05-01 08:17:33,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 08:17:33,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 08:17:33,162 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 08:17:33,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619568762] [2021-05-01 08:17:33,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [619568762] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 08:17:33,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 08:17:33,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-01 08:17:33,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426816247] [2021-05-01 08:17:33,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-01 08:17:33,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 08:17:33,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-01 08:17:33,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=53, Unknown=1, NotChecked=0, Total=72 [2021-05-01 08:17:33,164 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 08:17:33,449 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-05-01 08:17:33,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 08:17:33,549 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-05-01 08:17:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-01 08:17:33,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 3 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 [2021-05-01 08:17:33,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 08:17:33,550 INFO L225 Difference]: With dead ends: 14 [2021-05-01 08:17:33,550 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 08:17:33,553 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2617.3ms TimeCoverageRelationStatistics Valid=40, Invalid=115, Unknown=1, NotChecked=0, Total=156 [2021-05-01 08:17:33,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 08:17:33,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 08:17:33,554 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) [2021-05-01 08:17:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 08:17:33,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-05-01 08:17:33,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 08:17:33,555 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 08:17:33,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 08:17:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 08:17:33,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 08:17:33,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 08:17:33,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-01 08:17:34,075 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2021-05-01 08:17:34,075 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 11) no Hoare annotation was computed. [2021-05-01 08:17:34,075 INFO L198 CegarLoopUtils]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-05-01 08:17:34,076 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-05-01 08:17:34,076 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-05-01 08:17:34,076 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-05-01 08:17:34,076 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-05-01 08:17:34,076 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-01 08:17:34,076 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-01 08:17:34,076 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-05-01 08:17:34,076 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 19 29) the Hoare annotation is: true [2021-05-01 08:17:34,076 INFO L201 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-05-01 08:17:34,077 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 19 29) the Hoare annotation is: true [2021-05-01 08:17:34,077 INFO L201 CegarLoopUtils]: At program point L22(line 22) the Hoare annotation is: true [2021-05-01 08:17:34,077 INFO L194 CegarLoopUtils]: At program point L23-2(lines 23 26) the Hoare annotation is: (exists ((v_main_~x~0_11 Int) (v_main_~y~0_11 Int)) (and (or (let ((.cse0 (+ v_main_~x~0_11 main_~y~0))) (and (= .cse0 (+ main_~x~0 v_main_~y~0_11)) (< v_main_~y~0_11 main_~y~0) (or (<= 100 main_~y~0) (<= (+ v_main_~y~0_11 100) .cse0)) (< main_~y~0 101) (< .cse0 (+ v_main_~y~0_11 101)))) (and (= v_main_~x~0_11 main_~x~0) (= v_main_~y~0_11 main_~y~0))) (<= v_main_~x~0_11 99) (<= v_main_~y~0_11 99))) [2021-05-01 08:17:34,077 INFO L194 CegarLoopUtils]: At program point L23-3(lines 23 26) the Hoare annotation is: (and (exists ((v_main_~x~0_11 Int) (v_main_~y~0_11 Int)) (and (or (let ((.cse0 (+ v_main_~x~0_11 main_~y~0))) (and (= .cse0 (+ main_~x~0 v_main_~y~0_11)) (< v_main_~y~0_11 main_~y~0) (or (<= 100 main_~y~0) (<= (+ v_main_~y~0_11 100) .cse0)) (< main_~y~0 101) (< .cse0 (+ v_main_~y~0_11 101)))) (and (= v_main_~x~0_11 main_~x~0) (= v_main_~y~0_11 main_~y~0))) (<= v_main_~x~0_11 99) (<= v_main_~y~0_11 99))) (or (< 99 main_~x~0) (= main_~y~0 100))) [2021-05-01 08:17:34,078 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 19 29) the Hoare annotation is: true [2021-05-01 08:17:34,078 INFO L194 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-01 08:17:34,078 INFO L194 CegarLoopUtils]: At program point L15(lines 15 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-05-01 08:17:34,078 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 14 18) the Hoare annotation is: true [2021-05-01 08:17:34,078 INFO L201 CegarLoopUtils]: At program point L15-2(lines 14 18) the Hoare annotation is: true [2021-05-01 08:17:34,078 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 14 18) the Hoare annotation is: true [2021-05-01 08:17:34,078 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-01 08:17:34,105 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,106 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,107 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 08:17:34 BoogieIcfgContainer [2021-05-01 08:17:34,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 08:17:34,135 INFO L168 Benchmark]: Toolchain (without parser) took 6392.40 ms. Allocated memory was 184.5 MB in the beginning and 223.3 MB in the end (delta: 38.8 MB). Free memory was 150.3 MB in the beginning and 185.3 MB in the end (delta: -35.0 MB). Peak memory consumption was 59.9 MB. Max. memory is 8.0 GB. [2021-05-01 08:17:34,143 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 184.5 MB. Free memory is still 167.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 08:17:34,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.41 ms. Allocated memory is still 184.5 MB. Free memory was 150.1 MB in the beginning and 140.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-01 08:17:34,146 INFO L168 Benchmark]: Boogie Preprocessor took 129.95 ms. Allocated memory is still 184.5 MB. Free memory was 140.7 MB in the beginning and 168.1 MB in the end (delta: -27.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-05-01 08:17:34,146 INFO L168 Benchmark]: RCFGBuilder took 600.98 ms. Allocated memory is still 184.5 MB. Free memory was 168.1 MB in the beginning and 155.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-05-01 08:17:34,147 INFO L168 Benchmark]: TraceAbstraction took 5273.54 ms. Allocated memory was 184.5 MB in the beginning and 223.3 MB in the end (delta: 38.8 MB). Free memory was 154.5 MB in the beginning and 185.3 MB in the end (delta: -30.8 MB). Peak memory consumption was 64.1 MB. Max. memory is 8.0 GB. [2021-05-01 08:17:34,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 184.5 MB. Free memory is still 167.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 377.41 ms. Allocated memory is still 184.5 MB. Free memory was 150.1 MB in the beginning and 140.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 129.95 ms. Allocated memory is still 184.5 MB. Free memory was 140.7 MB in the beginning and 168.1 MB in the end (delta: -27.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 600.98 ms. Allocated memory is still 184.5 MB. Free memory was 168.1 MB in the beginning and 155.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5273.54 ms. Allocated memory was 184.5 MB in the beginning and 223.3 MB in the end (delta: 38.8 MB). Free memory was 154.5 MB in the beginning and 185.3 MB in the end (delta: -30.8 MB). Peak memory consumption was 64.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4593.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.9ms, AutomataDifference: 700.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 518.2ms, InitialAbstractionConstructionTime: 25.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 19 SDslu, 31 SDs, 0 SdLazy, 41 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 181.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2768.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 84.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 20 LocationsWithAnnotation, 26 PreInvPairs, 35 NumberOfFragments, 157 HoareAnnotationTreeSize, 26 FomulaSimplifications, 80 FormulaSimplificationTreeSizeReduction, 178.4ms HoareSimplificationTime, 20 FomulaSimplificationsInter, 292 FormulaSimplificationTreeSizeReductionInter, 295.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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: 23]: Loop Invariant [2021-05-01 08:17:34,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,185 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] [2021-05-01 08:17:34,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_11,QUANTIFIED] [2021-05-01 08:17:34,188 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_11,QUANTIFIED] Derived loop invariant: (\exists v_main_~x~0_11 : int, v_main_~y~0_11 : int :: ((((((v_main_~x~0_11 + y == x + v_main_~y~0_11 && v_main_~y~0_11 < y) && (100 <= y || v_main_~y~0_11 + 100 <= v_main_~x~0_11 + y)) && y < 101) && v_main_~x~0_11 + y < v_main_~y~0_11 + 101) || (v_main_~x~0_11 == x && v_main_~y~0_11 == y)) && v_main_~x~0_11 <= 99) && v_main_~y~0_11 <= 99) - ProcedureContractResult [Line: 19]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 RESULT: Ultimate proved your program to be correct! Received shutdown request...