/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:23:42,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:23:42,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:23:43,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:23:43,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:23:43,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:23:43,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:23:43,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:23:43,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:23:43,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:23:43,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:23:43,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:23:43,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:23:43,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:23:43,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:23:43,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:23:43,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:23:43,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:23:43,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:23:43,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:23:43,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:23:43,127 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:23:43,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:23:43,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:23:43,131 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:23:43,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:23:43,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:23:43,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:23:43,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:23:43,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:23:43,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:23:43,133 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:23:43,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:23:43,133 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:23:43,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:23:43,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:23:43,134 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:23:43,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:23:43,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:23:43,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:23:43,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:23:43,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:23:43,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:23:43,136 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:23:43,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:23:43,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:23:43,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:23:43,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:23:43,633 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:23:43,634 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:23:43,636 INFO L432 ainManager$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 [2021-02-22 02:23:43,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b2e34cc4/1ae28ebb413346e0a92ea35920503c78/FLAGfe3e1230b [2021-02-22 02:23:44,413 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:23:44,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-02-22 02:23:44,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b2e34cc4/1ae28ebb413346e0a92ea35920503c78/FLAGfe3e1230b [2021-02-22 02:23:44,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b2e34cc4/1ae28ebb413346e0a92ea35920503c78 [2021-02-22 02:23:44,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:23:44,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:23:44,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:23:44,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:23:44,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:23:44,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:23:44" (1/1) ... [2021-02-22 02:23:44,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b315f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:44, skipping insertion in model container [2021-02-22 02:23:44,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:23:44" (1/1) ... [2021-02-22 02:23:44,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:23:44,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:23:45,130 WARN L226 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] [2021-02-22 02:23:45,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:23:45,156 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:23:45,196 WARN L226 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] [2021-02-22 02:23:45,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:23:45,229 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:23:45,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:45 WrapperNode [2021-02-22 02:23:45,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:23:45,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:23:45,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:23:45,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:23:45,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:45" (1/1) ... [2021-02-22 02:23:45,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:45" (1/1) ... [2021-02-22 02:23:45,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:45" (1/1) ... [2021-02-22 02:23:45,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:45" (1/1) ... [2021-02-22 02:23:45,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:45" (1/1) ... [2021-02-22 02:23:45,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:45" (1/1) ... [2021-02-22 02:23:45,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:45" (1/1) ... [2021-02-22 02:23:45,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:23:45,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:23:45,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:23:45,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:23:45,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:23:45,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:23:45,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:23:45,459 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:23:45,459 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-22 02:23:45,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:23:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:23:45,460 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:23:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:23:45,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:23:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-22 02:23:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 02:23:45,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:23:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:23:45,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:23:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:23:45,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:23:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:23:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:23:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:23:45,873 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:23:45,887 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 02:23:45,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:23:45 BoogieIcfgContainer [2021-02-22 02:23:45,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:23:45,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:23:45,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:23:45,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:23:45,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:23:44" (1/3) ... [2021-02-22 02:23:45,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4da4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:23:45, skipping insertion in model container [2021-02-22 02:23:45,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:23:45" (2/3) ... [2021-02-22 02:23:45,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4da4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:23:45, skipping insertion in model container [2021-02-22 02:23:45,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:23:45" (3/3) ... [2021-02-22 02:23:45,922 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2021-02-22 02:23:45,941 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:23:45,956 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:23:45,990 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:23:46,024 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:23:46,024 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:23:46,025 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:23:46,025 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:23:46,025 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:23:46,025 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:23:46,025 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:23:46,025 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:23:46,048 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2021-02-22 02:23:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-02-22 02:23:46,062 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:23:46,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:23:46,064 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:23:46,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:23:46,074 INFO L82 PathProgramCache]: Analyzing trace with hash 2094402185, now seen corresponding path program 1 times [2021-02-22 02:23:46,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:23:46,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710275856] [2021-02-22 02:23:46,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:23:46,198 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:23:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:46,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:46,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:46,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:46,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:23:46,584 WARN L141 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-02-22 02:23:46,592 WARN L147 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size 25 [2021-02-22 02:23:46,622 WARN L141 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-02-22 02:23:46,625 WARN L147 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size 21 [2021-02-22 02:23:46,651 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-22 02:23:46,653 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-22 02:23:46,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:46,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:46,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:46,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:46,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:46,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:46,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:23:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:46,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:46,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:23:46,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710275856] [2021-02-22 02:23:46,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:23:46,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 02:23:46,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618150439] [2021-02-22 02:23:46,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 02:23:46,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:23:46,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 02:23:46,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-22 02:23:46,813 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 9 states. [2021-02-22 02:23:47,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:23:47,644 INFO L93 Difference]: Finished difference Result 73 states and 79 transitions. [2021-02-22 02:23:47,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-22 02:23:47,646 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2021-02-22 02:23:47,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:23:47,658 INFO L225 Difference]: With dead ends: 73 [2021-02-22 02:23:47,658 INFO L226 Difference]: Without dead ends: 42 [2021-02-22 02:23:47,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-02-22 02:23:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-02-22 02:23:47,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2021-02-22 02:23:47,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-02-22 02:23:47,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-02-22 02:23:47,719 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 34 [2021-02-22 02:23:47,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:23:47,720 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-02-22 02:23:47,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 02:23:47,720 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-02-22 02:23:47,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-02-22 02:23:47,722 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:23:47,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:23:47,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:23:47,723 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:23:47,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:23:47,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1979975, now seen corresponding path program 1 times [2021-02-22 02:23:47,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:23:47,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223909218] [2021-02-22 02:23:47,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:23:47,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:47,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:23:47,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:47,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:23:47,801 WARN L141 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-02-22 02:23:47,817 WARN L147 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size 11 [2021-02-22 02:23:47,822 WARN L141 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-02-22 02:23:47,826 WARN L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-02-22 02:23:47,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:47,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:23:47,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:47,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-22 02:23:47,846 WARN L141 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size [2021-02-22 02:23:47,849 WARN L147 QuantifierPusher]: treesize reduction 6, result has 64.7 percent of original size 11 [2021-02-22 02:23:47,853 WARN L141 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-02-22 02:23:47,855 WARN L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-02-22 02:23:47,856 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:23:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:48,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:48,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:23:48,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:23:48,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:23:48,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:23:48,153 WARN L141 QuantifierPusher]: treesize reduction 39, result has 55.7 percent of original size [2021-02-22 02:23:48,156 WARN L147 QuantifierPusher]: treesize reduction 39, result has 55.7 percent of original size 49 [2021-02-22 02:23:48,245 WARN L141 QuantifierPusher]: treesize reduction 37, result has 53.8 percent of original size [2021-02-22 02:23:48,251 WARN L147 QuantifierPusher]: treesize reduction 37, result has 53.8 percent of original size 43 [2021-02-22 02:23:48,295 WARN L141 QuantifierPusher]: treesize reduction 30, result has 23.1 percent of original size [2021-02-22 02:23:48,297 WARN L147 QuantifierPusher]: treesize reduction 30, result has 23.1 percent of original size 9 [2021-02-22 02:23:48,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:48,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:23:48,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:48,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:23:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:23:48,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:23:48,469 WARN L141 QuantifierPusher]: treesize reduction 5, result has 89.1 percent of original size [2021-02-22 02:23:48,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:23:48,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-22 02:23:48,492 WARN L147 QuantifierPusher]: treesize reduction 5, result has 89.1 percent of original size 41 [2021-02-22 02:23:48,503 WARN L141 QuantifierPusher]: treesize reduction 1, result has 98.5 percent of original size [2021-02-22 02:23:48,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:23:48,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-02-22 02:23:48,523 WARN L147 QuantifierPusher]: treesize reduction 1, result has 98.5 percent of original size 67 [2021-02-22 02:23:48,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-22 02:23:48,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:23:48,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:23:48,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:23:48,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-22 02:23:48,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:23:48,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:23:48,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223909218] [2021-02-22 02:23:48,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:23:48,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-22 02:23:48,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551254255] [2021-02-22 02:23:48,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-22 02:23:48,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:23:48,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-22 02:23:48,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-02-22 02:23:48,775 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 15 states. [2021-02-22 02:23:49,551 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-02-22 02:23:49,704 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2021-02-22 02:23:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:23:50,074 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-02-22 02:23:50,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-22 02:23:50,074 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 39 [2021-02-22 02:23:50,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:23:50,075 INFO L225 Difference]: With dead ends: 42 [2021-02-22 02:23:50,075 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 02:23:50,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=178, Invalid=692, Unknown=0, NotChecked=0, Total=870 [2021-02-22 02:23:50,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 02:23:50,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 02:23:50,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 02:23:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 02:23:50,079 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2021-02-22 02:23:50,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:23:50,080 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 02:23:50,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-22 02:23:50,080 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 02:23:50,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 02:23:50,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:23:50,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 02:23:50,481 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 31 [2021-02-22 02:23:50,602 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 30 [2021-02-22 02:23:50,918 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 36 [2021-02-22 02:23:51,120 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 40 [2021-02-22 02:23:51,356 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 30 [2021-02-22 02:23:51,604 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2021-02-22 02:23:51,895 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2021-02-22 02:23:51,944 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-02-22 02:23:51,944 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-02-22 02:23:51,944 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-02-22 02:23:51,945 INFO L192 CegarLoopUtils]: At program point L4-3(line 4) the Hoare annotation is: true [2021-02-22 02:23:51,945 INFO L192 CegarLoopUtils]: At program point L4-4(line 4) the Hoare annotation is: true [2021-02-22 02:23:51,945 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 02:23:51,945 INFO L192 CegarLoopUtils]: At program point L4-5(line 4) the Hoare annotation is: true [2021-02-22 02:23:51,945 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 02:23:51,945 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-22 02:23:51,946 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-22 02:23:51,946 INFO L185 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|)) [2021-02-22 02:23:51,946 INFO L192 CegarLoopUtils]: At program point L4(line 4) the Hoare annotation is: true [2021-02-22 02:23:51,946 INFO L192 CegarLoopUtils]: At program point L4-1(line 4) the Hoare annotation is: true [2021-02-22 02:23:51,946 INFO L192 CegarLoopUtils]: At program point L4-2(line 4) the Hoare annotation is: true [2021-02-22 02:23:51,946 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 02:23:51,947 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 02:23:51,947 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 02:23:51,947 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 02:23:51,947 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 02:23:51,947 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2021-02-22 02:23:51,947 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-02-22 02:23:51,947 INFO L189 CegarLoopUtils]: For program point L7-1(line 7) no Hoare annotation was computed. [2021-02-22 02:23:51,947 INFO L189 CegarLoopUtils]: For program point L7-3(lines 6 8) no Hoare annotation was computed. [2021-02-22 02:23:51,948 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2021-02-22 02:23:51,948 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= |old(~__return_72~0)| ~__return_72~0)) [2021-02-22 02:23:51,948 INFO L185 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,948 INFO L185 CegarLoopUtils]: At program point L58(line 58) the Hoare annotation is: (and (= |old(~__return_72~0)| ~__return_72~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2021-02-22 02:23:51,948 INFO L185 CegarLoopUtils]: At program point L25(lines 25 68) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= |old(~__return_72~0)| ~__return_72~0)) [2021-02-22 02:23:51,948 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 13 70) the Hoare annotation is: (or (= |old(~__return_72~0)| ~__return_72~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2021-02-22 02:23:51,949 INFO L185 CegarLoopUtils]: At program point L54(line 54) the Hoare annotation is: false [2021-02-22 02:23:51,949 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,949 INFO L185 CegarLoopUtils]: At program point L19(lines 19 69) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,949 INFO L185 CegarLoopUtils]: At program point L50(line 50) the Hoare annotation is: (let ((.cse4 (+ main_~main__y~0 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= |old(~__return_72~0)| ~__return_72~0)) (.cse2 (not (= main_~__tmp_1~0 0))) (.cse3 (<= main_~main__y~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse6 (+ main_~main__y~0 main_~main__i~0 1)) (.cse5 (+ main_~main____CPAchecker_TMP_0~0 main_~main__j~0))) (and .cse0 (= main_~main____CPAchecker_TMP_1~0 .cse4) (<= 0 main_~main__i~0) (not (= main_~main____CPAchecker_TMP_0~0 0)) .cse1 .cse2 .cse3 (<= .cse5 .cse6) (<= .cse6 .cse5) (<= 0 main_~main____CPAchecker_TMP_0~0) (= (+ main_~main__x~0 1) main_~main____CPAchecker_TMP_0~0)))))) [2021-02-22 02:23:51,949 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,950 INFO L185 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,950 INFO L185 CegarLoopUtils]: At program point L48(line 48) the Hoare annotation is: (let ((.cse1 (+ main_~main__y~0 1))) (let ((.cse0 (< 0 .cse1)) (.cse2 (= |old(~__return_72~0)| ~__return_72~0)) (.cse3 (<= main_~main__y~0 0))) (or (let ((.cse5 (+ main_~main__y~0 main_~main__i~0 1)) (.cse4 (+ main_~main____CPAchecker_TMP_0~0 main_~main__j~0))) (and .cse0 (= main_~main____CPAchecker_TMP_1~0 .cse1) (<= 0 main_~main__i~0) (not (= main_~main____CPAchecker_TMP_0~0 0)) .cse2 .cse3 (<= .cse4 .cse5) (<= .cse5 .cse4) (<= 0 main_~main____CPAchecker_TMP_0~0) (= (+ main_~main__x~0 1) main_~main____CPAchecker_TMP_0~0))) (and .cse0 .cse2 .cse3 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0))))) [2021-02-22 02:23:51,950 INFO L185 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,950 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 13 70) the Hoare annotation is: (or (= |old(~__return_72~0)| ~__return_72~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2021-02-22 02:23:51,950 INFO L185 CegarLoopUtils]: At program point L44(lines 44 66) the Hoare annotation is: (let ((.cse2 (+ main_~main__y~0 main_~main__i~0)) (.cse1 (<= main_~main__y~0 0))) (let ((.cse6 (+ main_~main__y~0 1)) (.cse0 (= |old(~__return_72~0)| ~__return_72~0)) (.cse5 (or (<= .cse2 main_~main__j~0) .cse1))) (or (let ((.cse4 (< 0 .cse6)) (.cse3 (+ main_~main__j~0 main_~main__x~0))) (and .cse0 (or .cse1 (<= .cse2 .cse3)) (or .cse4 (<= main_~main__j~0 .cse2)) .cse5 (<= main_~main__i~0 main_~main__x~0) (or .cse4 (<= .cse3 .cse2)) (<= main_~main__x~0 main_~main__i~0))) (let ((.cse8 (+ main_~main__y~0 main_~main__i~0 1)) (.cse7 (+ main_~main____CPAchecker_TMP_0~0 main_~main__j~0))) (and (= main_~main____CPAchecker_TMP_1~0 .cse6) (<= 0 main_~main__i~0) (not (= main_~main____CPAchecker_TMP_0~0 0)) .cse0 (<= .cse7 .cse8) .cse5 (<= .cse8 .cse7) (<= 0 main_~main____CPAchecker_TMP_0~0) (= (+ main_~main__x~0 1) main_~main____CPAchecker_TMP_0~0)))))) [2021-02-22 02:23:51,951 INFO L185 CegarLoopUtils]: At program point L40(lines 30 68) the Hoare annotation is: (let ((.cse0 (= |old(~__return_72~0)| ~__return_72~0))) (or (let ((.cse2 (+ main_~main__y~0 main_~main__i~0 1)) (.cse1 (+ main_~main____CPAchecker_TMP_0~0 main_~main__j~0))) (and (= main_~main____CPAchecker_TMP_1~0 (+ main_~main__y~0 1)) (<= 0 main_~main__i~0) (not (= main_~main____CPAchecker_TMP_0~0 0)) .cse0 (<= .cse1 .cse2) (<= .cse2 .cse1) (<= 0 main_~main____CPAchecker_TMP_0~0) (= (+ main_~main__x~0 1) main_~main____CPAchecker_TMP_0~0))) (let ((.cse4 (+ main_~main__j~0 main_~main__x~0)) (.cse3 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 (<= .cse3 .cse4) (<= main_~main__i~0 main_~main__x~0) (<= .cse4 .cse3) (<= main_~main__x~0 main_~main__i~0) (<= 0 main_~main__x~0))))) [2021-02-22 02:23:51,951 INFO L185 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: (let ((.cse1 (+ main_~main____CPAchecker_TMP_0~0 main_~main__j~0)) (.cse0 (+ main_~main__y~0 main_~main__i~0))) (and (<= 0 main_~main__i~0) (not (= main_~main____CPAchecker_TMP_0~0 0)) (<= .cse0 .cse1) (= |old(~__return_72~0)| ~__return_72~0) (<= .cse1 .cse0) (<= 0 main_~main____CPAchecker_TMP_0~0) (= (+ main_~main__x~0 1) main_~main____CPAchecker_TMP_0~0))) [2021-02-22 02:23:51,951 INFO L185 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: (let ((.cse5 (+ main_~main__y~0 main_~main__i~0)) (.cse4 (+ main_~main__j~0 main_~main__x~0))) (let ((.cse0 (= |old(~__return_72~0)| ~__return_72~0)) (.cse1 (<= .cse5 .cse4)) (.cse2 (<= .cse4 .cse5)) (.cse3 (not (= main_~main__x~0 0)))) (or (and .cse0 .cse1 (<= main_~main__i~0 main_~main__x~0) .cse2 .cse3 (<= main_~main__x~0 main_~main__i~0) (<= 0 main_~main__x~0)) (and (= main_~main____CPAchecker_TMP_1~0 (+ main_~main__y~0 1)) (<= 0 main_~main__i~0) (not (= main_~main____CPAchecker_TMP_0~0 0)) .cse0 .cse1 .cse2 .cse3 (<= 0 main_~main____CPAchecker_TMP_0~0) (= (+ main_~main__x~0 1) main_~main____CPAchecker_TMP_0~0))))) [2021-02-22 02:23:51,951 INFO L185 CegarLoopUtils]: At program point L65(line 65) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,951 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (and (= |old(~__return_72~0)| ~__return_72~0) (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0) (<= 0 main_~main__x~0)) [2021-02-22 02:23:51,952 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 53) the Hoare annotation is: false [2021-02-22 02:23:51,952 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 13 70) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,952 INFO L185 CegarLoopUtils]: At program point L59(line 59) the Hoare annotation is: (not (= main_~__VERIFIER_assert__cond~0 0)) [2021-02-22 02:23:51,952 INFO L185 CegarLoopUtils]: At program point L53(line 53) the Hoare annotation is: false [2021-02-22 02:23:51,952 INFO L185 CegarLoopUtils]: At program point L51(lines 51 60) the Hoare annotation is: (let ((.cse5 (+ main_~main__y~0 1))) (let ((.cse0 (< 0 .cse5)) (.cse1 (= |old(~__return_72~0)| ~__return_72~0)) (.cse2 (not (= main_~__tmp_1~0 0))) (.cse3 (<= main_~main__y~0 0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse7 (+ main_~main__y~0 main_~main__i~0 1)) (.cse6 (+ main_~main____CPAchecker_TMP_0~0 main_~main__j~0))) (and .cse0 (= main_~main____CPAchecker_TMP_1~0 .cse5) (<= 0 main_~main__i~0) (not (= main_~main____CPAchecker_TMP_0~0 0)) .cse1 .cse2 .cse3 (<= .cse6 .cse7) .cse4 (<= .cse7 .cse6) (<= 0 main_~main____CPAchecker_TMP_0~0) (= (+ main_~main__x~0 1) main_~main____CPAchecker_TMP_0~0)))))) [2021-02-22 02:23:51,953 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,953 INFO L185 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,953 INFO L185 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: (let ((.cse4 (+ main_~main__y~0 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= |old(~__return_72~0)| ~__return_72~0)) (.cse2 (not (= main_~__tmp_1~0 0))) (.cse3 (<= main_~main__y~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse6 (+ main_~main__y~0 main_~main__i~0 1)) (.cse5 (+ main_~main____CPAchecker_TMP_0~0 main_~main__j~0))) (and .cse0 (= main_~main____CPAchecker_TMP_1~0 .cse4) (<= 0 main_~main__i~0) (not (= main_~main____CPAchecker_TMP_0~0 0)) .cse1 .cse2 .cse3 (<= .cse5 .cse6) (<= .cse6 .cse5) (<= 0 main_~main____CPAchecker_TMP_0~0) (= (+ main_~main__x~0 1) main_~main____CPAchecker_TMP_0~0)))))) [2021-02-22 02:23:51,953 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,953 INFO L185 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-22 02:23:51,954 INFO L185 CegarLoopUtils]: At program point L47(line 47) the Hoare annotation is: (let ((.cse1 (+ main_~main__y~0 1))) (let ((.cse0 (< 0 .cse1)) (.cse2 (= |old(~__return_72~0)| ~__return_72~0)) (.cse3 (<= main_~main__y~0 0))) (or (let ((.cse5 (+ main_~main__y~0 main_~main__i~0 1)) (.cse4 (+ main_~main____CPAchecker_TMP_0~0 main_~main__j~0))) (and .cse0 (= main_~main____CPAchecker_TMP_1~0 .cse1) (<= 0 main_~main__i~0) (not (= main_~main____CPAchecker_TMP_0~0 0)) .cse2 .cse3 (<= .cse4 .cse5) (<= .cse5 .cse4) (<= 0 main_~main____CPAchecker_TMP_0~0) (= (+ main_~main__x~0 1) main_~main____CPAchecker_TMP_0~0))) (and .cse0 .cse2 .cse3 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0))))) [2021-02-22 02:23:51,954 INFO L185 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: (let ((.cse1 (+ main_~main____CPAchecker_TMP_0~0 main_~main__j~0)) (.cse0 (+ main_~main__y~0 main_~main__i~0))) (and (<= 0 main_~main__i~0) (not (= main_~main____CPAchecker_TMP_0~0 0)) (<= .cse0 .cse1) (= main_~main____CPAchecker_TMP_1~0 main_~main__y~0) (= |old(~__return_72~0)| ~__return_72~0) (<= .cse1 .cse0) (<= 0 main_~main____CPAchecker_TMP_0~0) (= (+ main_~main__x~0 1) main_~main____CPAchecker_TMP_0~0))) [2021-02-22 02:23:51,954 INFO L185 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: (let ((.cse1 (+ main_~main__j~0 main_~main__x~0)) (.cse0 (+ main_~main__y~0 main_~main__i~0))) (and (<= 0 main_~main__i~0) (= |old(~__return_72~0)| ~__return_72~0) (= main_~main____CPAchecker_TMP_0~0 main_~main__x~0) (<= .cse0 .cse1) (<= .cse1 .cse0) (not (= main_~main__x~0 0)) (<= 0 main_~main__x~0))) [2021-02-22 02:23:51,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:23:51 BoogieIcfgContainer [2021-02-22 02:23:51,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:23:51,981 INFO L168 Benchmark]: Toolchain (without parser) took 7204.63 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 127.1 MB in the beginning and 143.2 MB in the end (delta: -16.1 MB). Peak memory consumption was 119.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:51,982 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.7 MB in the end (delta: 80.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:23:51,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.17 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 116.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:51,984 INFO L168 Benchmark]: Boogie Preprocessor took 74.42 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 114.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:51,985 INFO L168 Benchmark]: RCFGBuilder took 586.71 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 130.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:51,986 INFO L168 Benchmark]: TraceAbstraction took 6081.92 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 130.8 MB in the beginning and 143.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 123.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:23:51,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.7 MB in the end (delta: 80.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 435.17 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 116.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.42 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 114.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 586.71 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 130.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6081.92 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 130.8 MB in the beginning and 143.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 123.0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((main____CPAchecker_TMP_1 == main__y + 1 && 0 <= main__i) && !(main____CPAchecker_TMP_0 == 0)) && \old(__return_72) == __return_72) && main____CPAchecker_TMP_0 + main__j <= main__y + main__i + 1) && main__y + main__i + 1 <= main____CPAchecker_TMP_0 + main__j) && 0 <= main____CPAchecker_TMP_0) && main__x + 1 == main____CPAchecker_TMP_0) || (((((\old(__return_72) == __return_72 && main__y + main__i <= main__j + main__x) && main__i <= main__x) && main__j + main__x <= main__y + main__i) && main__x <= main__i) && 0 <= main__x) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: \old(__return_72) == __return_72 || !(__VERIFIER_assert__cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 170 SDslu, 190 SDs, 0 SdLazy, 356 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 49 LocationsWithAnnotation, 49 PreInvPairs, 71 NumberOfFragments, 859 HoareAnnotationTreeSize, 49 FomulaSimplifications, 836 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 49 FomulaSimplificationsInter, 1315 FormulaSimplificationTreeSizeReductionInter, 1.6s 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...