/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-crafted/simple_array_index_value_4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 07:11:44,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 07:11:44,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 07:11:44,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 07:11:44,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 07:11:44,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 07:11:44,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 07:11:44,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 07:11:44,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 07:11:44,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 07:11:44,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 07:11:44,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 07:11:44,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 07:11:44,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 07:11:44,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 07:11:44,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 07:11:44,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 07:11:44,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 07:11:44,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 07:11:44,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 07:11:44,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 07:11:44,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 07:11:44,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 07:11:44,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 07:11:44,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 07:11:44,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 07:11:44,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 07:11:44,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 07:11:44,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 07:11:44,247 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 07:11:44,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 07:11:44,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 07:11:44,249 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 07:11:44,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 07:11:44,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 07:11:44,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 07:11:44,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 07:11:44,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 07:11:44,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 07:11:44,249 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 07:11:44,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 07:11:44,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 07:11:44,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 07:11:44,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 07:11:44,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 07:11:44,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 07:11:44,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 07:11:44,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:11:44,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 07:11:44,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 07:11:44,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 07:11:44,250 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 07:11:44,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 07:11:44,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 07:11:44,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 07:11:44,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 07:11:44,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 07:11:44,559 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 07:11:44,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2021-04-16 07:11:44,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8d0443f/a11e25640990440da6a782dd7cf0b06a/FLAG96b880238 [2021-04-16 07:11:44,998 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 07:11:44,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2021-04-16 07:11:45,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8d0443f/a11e25640990440da6a782dd7cf0b06a/FLAG96b880238 [2021-04-16 07:11:45,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8d0443f/a11e25640990440da6a782dd7cf0b06a [2021-04-16 07:11:45,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 07:11:45,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 07:11:45,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 07:11:45,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 07:11:45,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 07:11:45,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:11:45" (1/1) ... [2021-04-16 07:11:45,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bedb2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45, skipping insertion in model container [2021-04-16 07:11:45,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:11:45" (1/1) ... [2021-04-16 07:11:45,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 07:11:45,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 07:11:45,567 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-crafted/simple_array_index_value_4.i[919,932] [2021-04-16 07:11:45,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:11:45,592 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 07:11:45,606 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-crafted/simple_array_index_value_4.i[919,932] [2021-04-16 07:11:45,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:11:45,640 INFO L208 MainTranslator]: Completed translation [2021-04-16 07:11:45,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45 WrapperNode [2021-04-16 07:11:45,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 07:11:45,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 07:11:45,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 07:11:45,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 07:11:45,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45" (1/1) ... [2021-04-16 07:11:45,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45" (1/1) ... [2021-04-16 07:11:45,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45" (1/1) ... [2021-04-16 07:11:45,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45" (1/1) ... [2021-04-16 07:11:45,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45" (1/1) ... [2021-04-16 07:11:45,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45" (1/1) ... [2021-04-16 07:11:45,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45" (1/1) ... [2021-04-16 07:11:45,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 07:11:45,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 07:11:45,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 07:11:45,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 07:11:45,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45" (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 [2021-04-16 07:11:45,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 07:11:45,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 07:11:45,774 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 07:11:45,775 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 07:11:45,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 07:11:45,775 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 07:11:45,775 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 07:11:45,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 07:11:45,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-04-16 07:11:45,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-04-16 07:11:45,776 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 07:11:45,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 07:11:45,776 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 07:11:45,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 07:11:45,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-04-16 07:11:45,776 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 07:11:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 07:11:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 07:11:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 07:11:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 07:11:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 07:11:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 07:11:46,029 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 07:11:46,029 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-04-16 07:11:46,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:11:46 BoogieIcfgContainer [2021-04-16 07:11:46,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 07:11:46,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 07:11:46,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 07:11:46,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 07:11:46,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 07:11:45" (1/3) ... [2021-04-16 07:11:46,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f9b2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:11:46, skipping insertion in model container [2021-04-16 07:11:46,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:11:45" (2/3) ... [2021-04-16 07:11:46,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f9b2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:11:46, skipping insertion in model container [2021-04-16 07:11:46,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:11:46" (3/3) ... [2021-04-16 07:11:46,036 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2021-04-16 07:11:46,039 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 07:11:46,042 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 07:11:46,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 07:11:46,066 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 07:11:46,066 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 07:11:46,066 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 07:11:46,066 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 07:11:46,067 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 07:11:46,067 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 07:11:46,067 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 07:11:46,067 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 07:11:46,082 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 20 states have (on average 1.4) internal successors, (28), 22 states have internal predecessors, (28), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-04-16 07:11:46,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-04-16 07:11:46,091 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:11:46,092 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:11:46,092 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:11:46,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:11:46,100 INFO L82 PathProgramCache]: Analyzing trace with hash -2103477690, now seen corresponding path program 1 times [2021-04-16 07:11:46,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:11:46,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855362981] [2021-04-16 07:11:46,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:11:46,163 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:11:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:46,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:11:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:46,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 07:11:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:46,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-04-16 07:11:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:46,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-04-16 07:11:46,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855362981] [2021-04-16 07:11:46,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:11:46,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-16 07:11:46,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277577804] [2021-04-16 07:11:46,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-16 07:11:46,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:11:46,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-16 07:11:46,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 07:11:46,401 INFO L87 Difference]: Start difference. First operand has 33 states, 20 states have (on average 1.4) internal successors, (28), 22 states have internal predecessors, (28), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-04-16 07:11:46,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:11:46,517 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2021-04-16 07:11:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 07:11:46,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-04-16 07:11:46,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:11:46,523 INFO L225 Difference]: With dead ends: 59 [2021-04-16 07:11:46,524 INFO L226 Difference]: Without dead ends: 28 [2021-04-16 07:11:46,526 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 07:11:46,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-04-16 07:11:46,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-04-16 07:11:46,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-04-16 07:11:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-04-16 07:11:46,568 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 22 [2021-04-16 07:11:46,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:11:46,569 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-04-16 07:11:46,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-04-16 07:11:46,569 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-04-16 07:11:46,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-04-16 07:11:46,570 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:11:46,571 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:11:46,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 07:11:46,571 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:11:46,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:11:46,572 INFO L82 PathProgramCache]: Analyzing trace with hash 371025730, now seen corresponding path program 1 times [2021-04-16 07:11:46,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:11:46,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973422474] [2021-04-16 07:11:46,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:11:46,580 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:11:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:46,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 07:11:46,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-16 07:11:46,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:11:46,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:11:46,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:11:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:46,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 07:11:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:46,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:46,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-04-16 07:11:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:46,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:11:46,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:46,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:11:46,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-04-16 07:11:46,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973422474] [2021-04-16 07:11:46,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:11:46,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-04-16 07:11:46,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063906500] [2021-04-16 07:11:46,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-04-16 07:11:46,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:11:46,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-04-16 07:11:46,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-04-16 07:11:46,822 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-04-16 07:11:47,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:11:47,105 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2021-04-16 07:11:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-16 07:11:47,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-04-16 07:11:47,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:11:47,107 INFO L225 Difference]: With dead ends: 37 [2021-04-16 07:11:47,107 INFO L226 Difference]: Without dead ends: 35 [2021-04-16 07:11:47,109 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 197.2ms TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-04-16 07:11:47,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-04-16 07:11:47,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2021-04-16 07:11:47,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-04-16 07:11:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2021-04-16 07:11:47,129 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 22 [2021-04-16 07:11:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:11:47,130 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2021-04-16 07:11:47,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-04-16 07:11:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-04-16 07:11:47,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-04-16 07:11:47,131 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:11:47,131 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:11:47,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 07:11:47,132 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:11:47,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:11:47,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1433932453, now seen corresponding path program 1 times [2021-04-16 07:11:47,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:11:47,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005056564] [2021-04-16 07:11:47,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:11:47,135 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:11:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:47,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:47,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:11:47,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:47,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:11:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:47,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:47,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 07:11:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:47,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:47,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-04-16 07:11:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:47,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:47,245 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-04-16 07:11:47,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005056564] [2021-04-16 07:11:47,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:11:47,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-16 07:11:47,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109044643] [2021-04-16 07:11:47,246 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-16 07:11:47,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:11:47,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-16 07:11:47,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-16 07:11:47,247 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-04-16 07:11:47,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:11:47,327 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2021-04-16 07:11:47,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-16 07:11:47,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2021-04-16 07:11:47,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:11:47,330 INFO L225 Difference]: With dead ends: 47 [2021-04-16 07:11:47,330 INFO L226 Difference]: Without dead ends: 37 [2021-04-16 07:11:47,330 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-16 07:11:47,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-04-16 07:11:47,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2021-04-16 07:11:47,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-04-16 07:11:47,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2021-04-16 07:11:47,344 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 24 [2021-04-16 07:11:47,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:11:47,344 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2021-04-16 07:11:47,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-04-16 07:11:47,345 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2021-04-16 07:11:47,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-04-16 07:11:47,346 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:11:47,346 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:11:47,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-16 07:11:47,347 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:11:47,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:11:47,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1824318825, now seen corresponding path program 1 times [2021-04-16 07:11:47,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:11:47,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076166766] [2021-04-16 07:11:47,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:11:47,349 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:11:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:47,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:47,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:11:47,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-16 07:11:47,561 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.4 percent of original size [2021-04-16 07:11:47,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-16 07:11:47,586 INFO L142 QuantifierPusher]: treesize reduction 179, result has 29.2 percent of original size [2021-04-16 07:11:47,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-04-16 07:11:47,626 INFO L142 QuantifierPusher]: treesize reduction 642, result has 21.2 percent of original size [2021-04-16 07:11:47,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-04-16 07:11:47,672 INFO L142 QuantifierPusher]: treesize reduction 82, result has 90.1 percent of original size [2021-04-16 07:11:47,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 746 [2021-04-16 07:11:47,813 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 73 [2021-04-16 07:11:47,830 INFO L142 QuantifierPusher]: treesize reduction 82, result has 89.9 percent of original size [2021-04-16 07:11:47,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-04-16 07:11:47,866 INFO L142 QuantifierPusher]: treesize reduction 32, result has 67.3 percent of original size [2021-04-16 07:11:47,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-04-16 07:11:47,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:11:47,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:11:47,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:47,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:11:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:47,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:47,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 07:11:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:47,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:11:47,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:11:47,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-04-16 07:11:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:47,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:11:47,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:47,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:11:47,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-04-16 07:11:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:48,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:48,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-04-16 07:11:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:48,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 07:11:48,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 07:11:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-04-16 07:11:48,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076166766] [2021-04-16 07:11:48,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:11:48,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-16 07:11:48,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864164832] [2021-04-16 07:11:48,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-16 07:11:48,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:11:48,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-16 07:11:48,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-04-16 07:11:48,037 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-04-16 07:11:48,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:11:48,487 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-04-16 07:11:48,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-04-16 07:11:48,488 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2021-04-16 07:11:48,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:11:48,489 INFO L225 Difference]: With dead ends: 42 [2021-04-16 07:11:48,489 INFO L226 Difference]: Without dead ends: 40 [2021-04-16 07:11:48,489 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 567.6ms TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2021-04-16 07:11:48,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-04-16 07:11:48,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2021-04-16 07:11:48,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.08) internal successors, (27), 26 states have internal predecessors, (27), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-04-16 07:11:48,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2021-04-16 07:11:48,496 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 37 [2021-04-16 07:11:48,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:11:48,496 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-04-16 07:11:48,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2021-04-16 07:11:48,496 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2021-04-16 07:11:48,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-04-16 07:11:48,497 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:11:48,497 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 07:11:48,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-16 07:11:48,497 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:11:48,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:11:48,498 INFO L82 PathProgramCache]: Analyzing trace with hash 583974312, now seen corresponding path program 1 times [2021-04-16 07:11:48,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:11:48,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181132802] [2021-04-16 07:11:48,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:11:48,499 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:11:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:48,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:48,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 07:11:48,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-16 07:11:48,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-16 07:11:48,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 07:11:48,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-16 07:11:48,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-16 07:11:48,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-04-16 07:11:48,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:48,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:11:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:48,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:48,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 07:11:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:48,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:48,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-04-16 07:11:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:48,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:48,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-04-16 07:11:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:48,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:48,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-04-16 07:11:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:48,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:48,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-04-16 07:11:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:11:48,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:11:48,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:11:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-04-16 07:11:48,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181132802] [2021-04-16 07:11:48,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:11:48,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-16 07:11:48,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266297807] [2021-04-16 07:11:48,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-16 07:11:48,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:11:48,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-16 07:11:48,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-16 07:11:48,670 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 4 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-04-16 07:11:48,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:11:48,774 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2021-04-16 07:11:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-16 07:11:48,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 4 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 44 [2021-04-16 07:11:48,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:11:48,775 INFO L225 Difference]: With dead ends: 45 [2021-04-16 07:11:48,775 INFO L226 Difference]: Without dead ends: 0 [2021-04-16 07:11:48,776 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 65.9ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-16 07:11:48,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-16 07:11:48,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-16 07:11:48,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-16 07:11:48,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-16 07:11:48,777 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2021-04-16 07:11:48,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:11:48,778 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-16 07:11:48,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 4 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-04-16 07:11:48,780 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-16 07:11:48,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-16 07:11:48,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-16 07:11:48,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-04-16 07:11:49,151 INFO L198 CegarLoopUtils]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-04-16 07:11:49,151 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 18) no Hoare annotation was computed. [2021-04-16 07:11:49,152 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 18) no Hoare annotation was computed. [2021-04-16 07:11:49,152 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-04-16 07:11:49,152 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)|)) [2021-04-16 07:11:49,152 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-04-16 07:11:49,152 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-04-16 07:11:49,152 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-04-16 07:11:49,152 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-04-16 07:11:49,152 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-04-16 07:11:49,152 INFO L201 CegarLoopUtils]: At program point assume_abort_if_notENTRY(lines 20 22) the Hoare annotation is: true [2021-04-16 07:11:49,152 INFO L194 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) [2021-04-16 07:11:49,152 INFO L194 CegarLoopUtils]: At program point L21-2(lines 20 22) the Hoare annotation is: (and (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) (not (= |assume_abort_if_not_#in~cond| 0))) [2021-04-16 07:11:49,152 INFO L194 CegarLoopUtils]: At program point assume_abort_if_notEXIT(lines 20 22) the Hoare annotation is: (and (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) (not (= |assume_abort_if_not_#in~cond| 0))) [2021-04-16 07:11:49,153 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 33 61) the Hoare annotation is: true [2021-04-16 07:11:49,153 INFO L194 CegarLoopUtils]: At program point L54-2(lines 54 58) the Hoare annotation is: (let ((.cse1 (div main_~index1~0 4294967296))) (let ((.cse5 (div main_~index2~0 4294967296)) (.cse0 (* 4294967296 .cse1))) (or (and (<= (+ .cse0 1) main_~index1~0) (<= main_~index1~0 (+ (* 4294967296 (div (+ (* .cse1 4294967296) (* main_~index2~0 (- 1)) 4294967294) 4294967296)) main_~index2~0 1)) (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse3 (select .cse4 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse2 (select .cse4 (+ (* .cse5 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse2 (* 4294967296 (div (+ .cse3 (* .cse2 (- 1)) 4294967295) 4294967296)))) .cse3))) (<= main_~index1~0 (+ .cse0 99999))) (<= (+ (* 4294967296 .cse5) main_~index1~0 1) (+ .cse0 main_~index2~0))))) [2021-04-16 07:11:49,153 INFO L194 CegarLoopUtils]: At program point L46(line 46) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= main_~index2~0 (+ .cse0 99999)) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)))) [2021-04-16 07:11:49,153 INFO L194 CegarLoopUtils]: At program point L46-1(line 46) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= main_~index2~0 (+ .cse0 99999)) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)))) [2021-04-16 07:11:49,153 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 33 61) the Hoare annotation is: true [2021-04-16 07:11:49,153 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 33 61) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-04-16 07:11:49,153 INFO L194 CegarLoopUtils]: At program point L55(line 55) the Hoare annotation is: (let ((.cse5 (div main_~index2~0 4294967296)) (.cse1 (div main_~index1~0 4294967296))) (let ((.cse0 (* 4294967296 .cse1)) (.cse6 (* 4294967296 .cse5)) (.cse8 (* 4294967296 (div |main_#t~mem10| 4294967296))) (.cse7 (+ (* 4294967296 (div |main_#t~mem9| 4294967296)) |main_#t~mem10|))) (and (<= (+ .cse0 1) main_~index1~0) (<= main_~index1~0 (+ (* 4294967296 (div (+ (* .cse1 4294967296) (* main_~index2~0 (- 1)) 4294967294) 4294967296)) main_~index2~0 1)) (or (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse3 (select .cse4 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse2 (select .cse4 (+ (* .cse5 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse2 (* 4294967296 (div (+ .cse3 (* .cse2 (- 1)) 4294967295) 4294967296)))) .cse3))) (<= (+ .cse6 main_~index1~0) (+ .cse0 main_~index2~0))) (<= main_~index1~0 (+ .cse0 99999)) (< .cse7 (+ |main_#t~mem9| .cse8 1)) (<= main_~index2~0 (+ .cse6 99999)) (<= (+ |main_#t~mem9| .cse8) .cse7)))) [2021-04-16 07:11:49,153 INFO L194 CegarLoopUtils]: At program point L55-1(line 55) the Hoare annotation is: (let ((.cse0 (div main_~index1~0 4294967296))) (and (<= (+ (* 4294967296 .cse0) 1) main_~index1~0) (<= main_~index1~0 (+ (* 4294967296 (div (+ (* .cse0 4294967296) (* main_~index2~0 (- 1)) 4294967294) 4294967296)) main_~index2~0 1)))) [2021-04-16 07:11:49,153 INFO L201 CegarLoopUtils]: At program point L53(lines 53 59) the Hoare annotation is: true [2021-04-16 07:11:49,154 INFO L194 CegarLoopUtils]: At program point L47(line 47) the Hoare annotation is: (let ((.cse2 (div main_~index2~0 4294967296))) (let ((.cse0 (select |#memory_int| |main_~#array~0.base|)) (.cse3 (* 4294967296 .cse2)) (.cse1 (div main_~index1~0 4294967296))) (and (= (select .cse0 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)) |main_#t~mem5|) (= (select .cse0 (+ (* .cse2 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)) |main_#t~mem6|) (<= main_~index2~0 (+ .cse3 99999)) (<= (+ .cse3 main_~index1~0 1) (+ (* 4294967296 .cse1) main_~index2~0))))) [2021-04-16 07:11:49,154 INFO L194 CegarLoopUtils]: At program point L47-1(line 47) the Hoare annotation is: (let ((.cse4 (div main_~index2~0 4294967296)) (.cse5 (select |#memory_int| |main_~#array~0.base|)) (.cse3 (div main_~index1~0 4294967296))) (let ((.cse0 (select .cse5 (+ (* .cse3 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|))) (.cse1 (select .cse5 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|))) (.cse2 (* 4294967296 .cse4))) (and (= .cse0 |main_#t~mem5|) (= .cse1 |main_#t~mem6|) (<= main_~index2~0 (+ .cse2 99999)) (<= .cse1 (+ .cse0 (* 4294967296 (div (+ (* .cse0 (- 1)) .cse1) 4294967296)))) (<= (+ .cse2 main_~index1~0 1) (+ (* 4294967296 .cse3) main_~index2~0))))) [2021-04-16 07:11:49,154 INFO L194 CegarLoopUtils]: At program point L45-1(lines 43 51) the Hoare annotation is: (let ((.cse1 (div main_~index1~0 4294967296)) (.cse5 (div main_~index2~0 4294967296))) (let ((.cse6 (* 4294967296 .cse5)) (.cse0 (* 4294967296 .cse1))) (let ((.cse7 (<= main_~index1~0 (+ .cse0 99999))) (.cse8 (<= main_~index2~0 (+ .cse6 99999)))) (or (and (<= (+ .cse0 1) main_~index1~0) (<= main_~index1~0 (+ (* 4294967296 (div (+ (* .cse1 4294967296) (* main_~index2~0 (- 1)) 4294967294) 4294967296)) main_~index2~0 1)) (or (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse3 (select .cse4 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse2 (select .cse4 (+ (* .cse5 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse2 (* 4294967296 (div (+ .cse3 (* .cse2 (- 1)) 4294967295) 4294967296)))) .cse3))) (<= (+ .cse6 main_~index1~0) (+ .cse0 main_~index2~0))) .cse7 .cse8) (and .cse7 .cse8 (= main_~loop_entered~0 0)))))) [2021-04-16 07:11:49,154 INFO L194 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: (and (<= main_~index1~0 (+ (* 4294967296 (div main_~index1~0 4294967296)) 99999)) (= main_~loop_entered~0 0)) [2021-04-16 07:11:49,154 INFO L194 CegarLoopUtils]: At program point L45-2(lines 34 61) the Hoare annotation is: (let ((.cse5 (div main_~index2~0 4294967296))) (let ((.cse6 (* 4294967296 .cse5))) (let ((.cse7 (<= main_~index2~0 (+ .cse6 99999)))) (or (let ((.cse1 (div main_~index1~0 4294967296))) (let ((.cse0 (* 4294967296 .cse1))) (and (<= (+ .cse0 1) main_~index1~0) (<= main_~index1~0 (+ (* 4294967296 (div (+ (* .cse1 4294967296) (* main_~index2~0 (- 1)) 4294967294) 4294967296)) main_~index2~0 1)) (or (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse3 (select .cse4 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse2 (select .cse4 (+ (* .cse5 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse2 (* 4294967296 (div (+ .cse3 (* .cse2 (- 1)) 4294967295) 4294967296)))) .cse3))) (<= (+ .cse6 main_~index1~0) (+ .cse0 main_~index2~0))) (<= main_~index1~0 (+ .cse0 99999)) .cse7))) (and .cse7 (= main_~loop_entered~0 0)))))) [2021-04-16 07:11:49,154 INFO L194 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-04-16 07:11:49,154 INFO L194 CegarLoopUtils]: At program point L41-1(line 41) the Hoare annotation is: (and (<= main_~index1~0 (+ (* 4294967296 (div main_~index1~0 4294967296)) 99999)) (= main_~loop_entered~0 0)) [2021-04-16 07:11:49,154 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 23 29) the Hoare annotation is: true [2021-04-16 07:11:49,154 INFO L194 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-04-16 07:11:49,155 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 23 29) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-04-16 07:11:49,155 INFO L194 CegarLoopUtils]: At program point L25(lines 25 27) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-04-16 07:11:49,155 INFO L194 CegarLoopUtils]: At program point L25-2(lines 23 29) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-04-16 07:11:49,155 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-04-16 07:11:49,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 07:11:49 BoogieIcfgContainer [2021-04-16 07:11:49,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 07:11:49,177 INFO L168 Benchmark]: Toolchain (without parser) took 3752.98 ms. Allocated memory was 176.2 MB in the beginning and 212.9 MB in the end (delta: 36.7 MB). Free memory was 141.9 MB in the beginning and 187.1 MB in the end (delta: -45.2 MB). Peak memory consumption was 105.7 MB. Max. memory is 8.0 GB. [2021-04-16 07:11:49,177 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 176.2 MB. Free memory was 158.7 MB in the beginning and 158.6 MB in the end (delta: 118.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 07:11:49,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.07 ms. Allocated memory is still 176.2 MB. Free memory was 141.6 MB in the beginning and 159.9 MB in the end (delta: -18.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 8.0 GB. [2021-04-16 07:11:49,177 INFO L168 Benchmark]: Boogie Preprocessor took 60.50 ms. Allocated memory is still 176.2 MB. Free memory was 159.9 MB in the beginning and 157.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-16 07:11:49,178 INFO L168 Benchmark]: RCFGBuilder took 327.97 ms. Allocated memory is still 176.2 MB. Free memory was 157.8 MB in the beginning and 141.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-04-16 07:11:49,178 INFO L168 Benchmark]: TraceAbstraction took 3143.87 ms. Allocated memory was 176.2 MB in the beginning and 212.9 MB in the end (delta: 36.7 MB). Free memory was 140.5 MB in the beginning and 187.1 MB in the end (delta: -46.6 MB). Peak memory consumption was 105.0 MB. Max. memory is 8.0 GB. [2021-04-16 07:11:49,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 176.2 MB. Free memory was 158.7 MB in the beginning and 158.6 MB in the end (delta: 118.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 216.07 ms. Allocated memory is still 176.2 MB. Free memory was 141.6 MB in the beginning and 159.9 MB in the end (delta: -18.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 60.50 ms. Allocated memory is still 176.2 MB. Free memory was 159.9 MB in the beginning and 157.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 327.97 ms. Allocated memory is still 176.2 MB. Free memory was 157.8 MB in the beginning and 141.1 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3143.87 ms. Allocated memory was 176.2 MB in the beginning and 212.9 MB in the end (delta: 36.7 MB). Free memory was 140.5 MB in the beginning and 187.1 MB in the end (delta: -46.6 MB). Peak memory consumption was 105.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: 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 6 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2715.8ms, OverallIterations: 5, TraceHistogramMax: 3, EmptinessCheckTime: 18.8ms, AutomataDifference: 1067.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 370.4ms, InitialAbstractionConstructionTime: 9.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 130 SDtfs, 88 SDslu, 183 SDs, 0 SdLazy, 431 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 439.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 49 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 884.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=4, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 72.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 33 LocationsWithAnnotation, 89 PreInvPairs, 126 NumberOfFragments, 959 HoareAnnotationTreeSize, 89 FomulaSimplifications, 797 FormulaSimplificationTreeSizeReduction, 78.3ms HoareSimplificationTime, 33 FomulaSimplificationsInter, 259 FormulaSimplificationTreeSizeReductionInter, 277.0ms 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: 43]: Loop Invariant Derived loop invariant: ((((4294967296 * (index1 / 4294967296) + 1 <= index1 && index1 <= 4294967296 * ((index1 / 4294967296 * 4294967296 + index2 * -1 + 4294967294) / 4294967296) + index2 + 1) && (unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] + 4294967296 * ((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] * -1 + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] || 4294967296 * (index2 / 4294967296) + index1 <= 4294967296 * (index1 / 4294967296) + index2)) && index1 <= 4294967296 * (index1 / 4294967296) + 99999) && index2 <= 4294967296 * (index2 / 4294967296) + 99999) || ((index1 <= 4294967296 * (index1 / 4294967296) + 99999 && index2 <= 4294967296 * (index2 / 4294967296) + 99999) && loop_entered == 0) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (((4294967296 * (index1 / 4294967296) + 1 <= index1 && index1 <= 4294967296 * ((index1 / 4294967296 * 4294967296 + index2 * -1 + 4294967294) / 4294967296) + index2 + 1) && unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] + 4294967296 * ((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array] + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] * -1 + 4294967295) / 4294967296) <= unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + index1 * 4 + array]) && index1 <= 4294967296 * (index1 / 4294967296) + 99999) || 4294967296 * (index2 / 4294967296) + index1 + 1 <= 4294967296 * (index1 / 4294967296) + index2 - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not: cond == \old(cond) && !(\old(cond) == 0) - ProcedureContractResult [Line: 33]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 23]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) RESULT: Ultimate proved your program to be correct! Received shutdown request...