/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:17:45,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:17:45,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:17:45,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:17:45,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 00:17:45,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 00:17:45,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 00:17:45,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 00:17:45,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 00:17:45,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 00:17:45,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 00:17:45,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 00:17:45,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 00:17:45,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 00:17:45,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 00:17:45,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 00:17:45,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 00:17:45,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:17:45,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:17:45,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:17:45,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:17:45,308 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:17:45,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:17:45,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:17:45,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:17:45,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:17:45,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:17:45,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:17:45,310 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:17:45,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:17:45,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:17:45,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:17:45,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:17:45,311 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:17:45,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:17:45,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:17:45,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:17:45,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:17:45,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:17:45,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:17:45,312 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:17:45,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:17:45,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:17:45,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:17:45,857 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:17:45,858 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:17:45,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2021-02-24 00:17:45,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d193f44/6c2726d6f4be4e3f9c8d28faca187ce2/FLAGbad2950a6 [2021-02-24 00:17:46,569 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:17:46,570 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_4.i [2021-02-24 00:17:46,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d193f44/6c2726d6f4be4e3f9c8d28faca187ce2/FLAGbad2950a6 [2021-02-24 00:17:46,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d193f44/6c2726d6f4be4e3f9c8d28faca187ce2 [2021-02-24 00:17:46,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:17:46,988 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:17:46,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:17:46,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:17:46,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:17:46,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:17:46" (1/1) ... [2021-02-24 00:17:47,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@588cb83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:46, skipping insertion in model container [2021-02-24 00:17:47,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:17:46" (1/1) ... [2021-02-24 00:17:47,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:17:47,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:17:47,260 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] [2021-02-24 00:17:47,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:17:47,300 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:17:47,319 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] [2021-02-24 00:17:47,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:17:47,364 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:17:47,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:47 WrapperNode [2021-02-24 00:17:47,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:17:47,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:17:47,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:17:47,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:17:47,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:47" (1/1) ... [2021-02-24 00:17:47,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:47" (1/1) ... [2021-02-24 00:17:47,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:47" (1/1) ... [2021-02-24 00:17:47,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:47" (1/1) ... [2021-02-24 00:17:47,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:47" (1/1) ... [2021-02-24 00:17:47,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:47" (1/1) ... [2021-02-24 00:17:47,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:47" (1/1) ... [2021-02-24 00:17:47,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:17:47,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:17:47,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:17:47,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:17:47,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:17:47,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:17:47,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:17:47,548 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:17:47,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 00:17:47,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 00:17:47,549 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:17:47,549 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:17:47,549 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:17:47,549 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 00:17:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 00:17:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:17:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:17:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 00:17:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:17:47,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-24 00:17:47,551 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:17:47,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:17:47,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:17:47,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:17:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:17:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:17:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:17:47,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:17:47,885 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-24 00:17:47,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:17:47 BoogieIcfgContainer [2021-02-24 00:17:47,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:17:47,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:17:47,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:17:47,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:17:47,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:17:46" (1/3) ... [2021-02-24 00:17:47,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11787b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:17:47, skipping insertion in model container [2021-02-24 00:17:47,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:47" (2/3) ... [2021-02-24 00:17:47,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11787b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:17:47, skipping insertion in model container [2021-02-24 00:17:47,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:17:47" (3/3) ... [2021-02-24 00:17:47,903 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2021-02-24 00:17:47,917 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:17:47,928 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:17:47,954 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:17:47,980 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:17:47,980 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:17:47,980 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:17:47,980 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:17:47,981 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:17:47,981 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:17:47,981 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:17:47,981 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:17:47,998 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2021-02-24 00:17:48,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-02-24 00:17:48,010 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:48,011 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2021-02-24 00:17:48,012 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:48,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:48,027 INFO L82 PathProgramCache]: Analyzing trace with hash -917266122, now seen corresponding path program 1 times [2021-02-24 00:17:48,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:48,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449367121] [2021-02-24 00:17:48,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:48,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:48,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:48,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 00:17:48,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 00:17:48,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:48,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:48,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:48,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:48,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:48,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 00:17:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:48,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:48,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 00:17:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:48,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:48,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:48,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:48,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-24 00:17:48,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449367121] [2021-02-24 00:17:48,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:17:48,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 00:17:48,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777042591] [2021-02-24 00:17:48,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 00:17:48,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:48,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 00:17:48,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 00:17:48,605 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 9 states. [2021-02-24 00:17:49,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:49,112 INFO L93 Difference]: Finished difference Result 142 states and 175 transitions. [2021-02-24 00:17:49,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 00:17:49,114 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2021-02-24 00:17:49,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:49,126 INFO L225 Difference]: With dead ends: 142 [2021-02-24 00:17:49,127 INFO L226 Difference]: Without dead ends: 83 [2021-02-24 00:17:49,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-02-24 00:17:49,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-02-24 00:17:49,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2021-02-24 00:17:49,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-02-24 00:17:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2021-02-24 00:17:49,224 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 34 [2021-02-24 00:17:49,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:49,225 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2021-02-24 00:17:49,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 00:17:49,226 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2021-02-24 00:17:49,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-02-24 00:17:49,232 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:49,234 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:17:49,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:17:49,235 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:49,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1520105862, now seen corresponding path program 1 times [2021-02-24 00:17:49,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:49,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074885290] [2021-02-24 00:17:49,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:49,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:49,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:49,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:49,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:49,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:49,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 00:17:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:49,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:49,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 00:17:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:49,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 00:17:49,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074885290] [2021-02-24 00:17:49,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:17:49,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 00:17:49,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240121616] [2021-02-24 00:17:49,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 00:17:49,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:49,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 00:17:49,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:17:49,521 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 4 states. [2021-02-24 00:17:49,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:49,701 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2021-02-24 00:17:49,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 00:17:49,702 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2021-02-24 00:17:49,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:49,706 INFO L225 Difference]: With dead ends: 95 [2021-02-24 00:17:49,706 INFO L226 Difference]: Without dead ends: 76 [2021-02-24 00:17:49,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 00:17:49,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-02-24 00:17:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 64. [2021-02-24 00:17:49,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-02-24 00:17:49,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2021-02-24 00:17:49,722 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 38 [2021-02-24 00:17:49,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:49,722 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2021-02-24 00:17:49,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 00:17:49,723 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2021-02-24 00:17:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-24 00:17:49,725 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:49,725 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:17:49,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:17:49,725 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:49,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:49,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1768210375, now seen corresponding path program 1 times [2021-02-24 00:17:49,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:49,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [492044596] [2021-02-24 00:17:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:49,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:49,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:17:49,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 00:17:49,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 00:17:49,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 00:17:49,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 00:17:49,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 00:17:49,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:49,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:49,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:49,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:50,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:50,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:50,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 00:17:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:50,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:50,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 00:17:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:50,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:50,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:50,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-24 00:17:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:50,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:50,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-24 00:17:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:50,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-24 00:17:50,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [492044596] [2021-02-24 00:17:50,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:17:50,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-24 00:17:50,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963469423] [2021-02-24 00:17:50,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:17:50,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:50,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:17:50,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:17:50,109 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 12 states. [2021-02-24 00:17:50,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:50,645 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2021-02-24 00:17:50,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 00:17:50,645 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2021-02-24 00:17:50,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:50,647 INFO L225 Difference]: With dead ends: 88 [2021-02-24 00:17:50,647 INFO L226 Difference]: Without dead ends: 86 [2021-02-24 00:17:50,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2021-02-24 00:17:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-02-24 00:17:50,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 63. [2021-02-24 00:17:50,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-02-24 00:17:50,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2021-02-24 00:17:50,664 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 56 [2021-02-24 00:17:50,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:50,665 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2021-02-24 00:17:50,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:17:50,665 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2021-02-24 00:17:50,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-24 00:17:50,667 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:50,667 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:17:50,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:17:50,667 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:50,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:50,668 INFO L82 PathProgramCache]: Analyzing trace with hash -2085456757, now seen corresponding path program 1 times [2021-02-24 00:17:50,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:50,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653317539] [2021-02-24 00:17:50,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:50,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:50,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:17:50,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 00:17:50,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 00:17:50,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:50,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 00:17:51,001 WARN L141 QuantifierPusher]: treesize reduction 102, result has 36.3 percent of original size [2021-02-24 00:17:51,003 WARN L147 QuantifierPusher]: treesize reduction 102, result has 36.3 percent of original size 58 [2021-02-24 00:17:51,037 WARN L141 QuantifierPusher]: treesize reduction 179, result has 29.2 percent of original size [2021-02-24 00:17:51,039 WARN L147 QuantifierPusher]: treesize reduction 179, result has 29.2 percent of original size 74 [2021-02-24 00:17:51,083 WARN L141 QuantifierPusher]: treesize reduction 642, result has 21.2 percent of original size [2021-02-24 00:17:51,085 WARN L147 QuantifierPusher]: treesize reduction 642, result has 21.2 percent of original size 173 [2021-02-24 00:17:51,132 WARN L141 QuantifierPusher]: treesize reduction 237, result has 45.4 percent of original size [2021-02-24 00:17:51,135 WARN L147 QuantifierPusher]: treesize reduction 237, result has 45.4 percent of original size 197 [2021-02-24 00:17:51,259 WARN L141 QuantifierPusher]: treesize reduction 935, result has 22.0 percent of original size [2021-02-24 00:17:51,262 WARN L147 QuantifierPusher]: treesize reduction 935, result has 22.0 percent of original size 263 [2021-02-24 00:17:51,374 WARN L141 QuantifierPusher]: treesize reduction 259, result has 43.4 percent of original size [2021-02-24 00:17:51,377 WARN L147 QuantifierPusher]: treesize reduction 259, result has 43.4 percent of original size 199 [2021-02-24 00:17:51,452 WARN L141 QuantifierPusher]: treesize reduction 439, result has 47.0 percent of original size [2021-02-24 00:17:51,455 WARN L147 QuantifierPusher]: treesize reduction 439, result has 47.0 percent of original size 389 [2021-02-24 00:17:51,563 WARN L141 QuantifierPusher]: treesize reduction 439, result has 45.8 percent of original size [2021-02-24 00:17:51,566 WARN L147 QuantifierPusher]: treesize reduction 439, result has 45.8 percent of original size 371 [2021-02-24 00:17:51,600 WARN L141 QuantifierPusher]: treesize reduction 397, result has 44.5 percent of original size [2021-02-24 00:17:51,601 WARN L147 QuantifierPusher]: treesize reduction 397, result has 44.5 percent of original size 318 [2021-02-24 00:17:51,688 WARN L141 QuantifierPusher]: treesize reduction 23, result has 89.9 percent of original size [2021-02-24 00:17:51,690 WARN L147 QuantifierPusher]: treesize reduction 23, result has 89.9 percent of original size 205 [2021-02-24 00:17:51,758 WARN L141 QuantifierPusher]: treesize reduction 32, result has 67.3 percent of original size [2021-02-24 00:17:51,759 WARN L147 QuantifierPusher]: treesize reduction 32, result has 67.3 percent of original size 66 [2021-02-24 00:17:51,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:51,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:51,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:51,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:51,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:51,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:51,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:51,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:51,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:51,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 00:17:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:51,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:51,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:51,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 00:17:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:51,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:51,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:51,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:51,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:51,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-24 00:17:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:51,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:51,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:51,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-24 00:17:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:51,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:51,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:51,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:51,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-24 00:17:51,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653317539] [2021-02-24 00:17:51,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:17:51,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-02-24 00:17:51,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383455471] [2021-02-24 00:17:51,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-24 00:17:51,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:51,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-24 00:17:51,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-02-24 00:17:51,986 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 19 states. [2021-02-24 00:17:53,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:53,419 INFO L93 Difference]: Finished difference Result 104 states and 111 transitions. [2021-02-24 00:17:53,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-24 00:17:53,420 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 60 [2021-02-24 00:17:53,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:53,426 INFO L225 Difference]: With dead ends: 104 [2021-02-24 00:17:53,426 INFO L226 Difference]: Without dead ends: 102 [2021-02-24 00:17:53,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=153, Invalid=903, Unknown=0, NotChecked=0, Total=1056 [2021-02-24 00:17:53,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-02-24 00:17:53,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 90. [2021-02-24 00:17:53,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2021-02-24 00:17:53,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2021-02-24 00:17:53,462 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 60 [2021-02-24 00:17:53,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:53,463 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2021-02-24 00:17:53,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-24 00:17:53,463 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2021-02-24 00:17:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-02-24 00:17:53,465 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:53,465 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:17:53,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 00:17:53,466 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:53,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:53,467 INFO L82 PathProgramCache]: Analyzing trace with hash -720048287, now seen corresponding path program 1 times [2021-02-24 00:17:53,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:53,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812050258] [2021-02-24 00:17:53,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:53,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:53,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:17:53,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 00:17:53,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 00:17:53,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-24 00:17:53,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 00:17:53,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 00:17:53,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 00:17:53,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 00:17:53,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 00:17:53,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 00:17:53,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 00:17:53,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:53,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:53,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:53,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 00:17:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:53,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:53,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 00:17:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:53,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:53,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-24 00:17:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:53,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:53,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-24 00:17:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:53,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:53,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-24 00:17:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:53,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:53,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:53,802 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-24 00:17:53,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812050258] [2021-02-24 00:17:53,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:17:53,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-24 00:17:53,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905891814] [2021-02-24 00:17:53,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:17:53,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:53,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:17:53,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:17:53,804 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand 10 states. [2021-02-24 00:17:54,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:54,803 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2021-02-24 00:17:54,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-24 00:17:54,805 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2021-02-24 00:17:54,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:54,806 INFO L225 Difference]: With dead ends: 109 [2021-02-24 00:17:54,806 INFO L226 Difference]: Without dead ends: 71 [2021-02-24 00:17:54,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-02-24 00:17:54,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-02-24 00:17:54,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-02-24 00:17:54,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-02-24 00:17:54,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2021-02-24 00:17:54,849 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 76 [2021-02-24 00:17:54,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:54,849 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2021-02-24 00:17:54,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:17:54,849 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2021-02-24 00:17:54,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-24 00:17:54,856 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:54,856 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:17:54,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 00:17:54,856 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:54,857 INFO L82 PathProgramCache]: Analyzing trace with hash 929337308, now seen corresponding path program 2 times [2021-02-24 00:17:54,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:54,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092308629] [2021-02-24 00:17:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:55,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:55,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:55,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:55,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:17:55,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:55,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 00:17:55,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:55,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 00:17:55,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:55,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 00:17:55,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:55,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 00:17:55,231 WARN L141 QuantifierPusher]: treesize reduction 20, result has 77.3 percent of original size [2021-02-24 00:17:55,232 WARN L147 QuantifierPusher]: treesize reduction 20, result has 77.3 percent of original size 68 [2021-02-24 00:17:55,267 WARN L141 QuantifierPusher]: treesize reduction 20, result has 75.6 percent of original size [2021-02-24 00:17:55,268 WARN L147 QuantifierPusher]: treesize reduction 20, result has 75.6 percent of original size 62 [2021-02-24 00:17:55,301 WARN L141 QuantifierPusher]: treesize reduction 48, result has 62.2 percent of original size [2021-02-24 00:17:55,302 WARN L147 QuantifierPusher]: treesize reduction 48, result has 62.2 percent of original size 79 [2021-02-24 00:17:55,434 WARN L141 QuantifierPusher]: treesize reduction 89, result has 53.4 percent of original size [2021-02-24 00:17:55,437 WARN L147 QuantifierPusher]: treesize reduction 89, result has 53.4 percent of original size 102 [2021-02-24 00:17:55,507 WARN L141 QuantifierPusher]: treesize reduction 174, result has 48.2 percent of original size [2021-02-24 00:17:55,509 WARN L147 QuantifierPusher]: treesize reduction 174, result has 48.2 percent of original size 162 [2021-02-24 00:17:56,037 WARN L202 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 34 [2021-02-24 00:17:56,047 WARN L141 QuantifierPusher]: treesize reduction 138, result has 69.5 percent of original size [2021-02-24 00:17:56,051 WARN L147 QuantifierPusher]: treesize reduction 138, result has 69.5 percent of original size 315 [2021-02-24 00:17:56,256 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 37 [2021-02-24 00:17:56,273 WARN L141 QuantifierPusher]: treesize reduction 142, result has 86.0 percent of original size [2021-02-24 00:17:56,294 WARN L147 QuantifierPusher]: treesize reduction 142, result has 86.0 percent of original size 873 [2021-02-24 00:17:56,584 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 40 [2021-02-24 00:17:56,592 WARN L141 QuantifierPusher]: treesize reduction 243, result has 56.2 percent of original size [2021-02-24 00:17:56,594 WARN L147 QuantifierPusher]: treesize reduction 243, result has 56.2 percent of original size 312 [2021-02-24 00:17:56,753 WARN L141 QuantifierPusher]: treesize reduction 121, result has 91.6 percent of original size [2021-02-24 00:17:56,767 WARN L147 QuantifierPusher]: treesize reduction 121, result has 91.6 percent of original size 1325 [2021-02-24 00:17:57,083 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 56 [2021-02-24 00:17:57,089 WARN L141 QuantifierPusher]: treesize reduction 234, result has 50.1 percent of original size [2021-02-24 00:17:57,092 WARN L147 QuantifierPusher]: treesize reduction 234, result has 50.1 percent of original size 235 [2021-02-24 00:17:57,305 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2021-02-24 00:17:57,314 WARN L141 QuantifierPusher]: treesize reduction 92, result has 89.2 percent of original size [2021-02-24 00:17:57,319 WARN L147 QuantifierPusher]: treesize reduction 92, result has 89.2 percent of original size 762 [2021-02-24 00:17:57,557 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 73 [2021-02-24 00:17:57,567 WARN L141 QuantifierPusher]: treesize reduction 82, result has 90.1 percent of original size [2021-02-24 00:17:57,571 WARN L147 QuantifierPusher]: treesize reduction 82, result has 90.1 percent of original size 744 [2021-02-24 00:17:57,646 WARN L141 QuantifierPusher]: treesize reduction 47, result has 93.4 percent of original size [2021-02-24 00:17:57,651 WARN L147 QuantifierPusher]: treesize reduction 47, result has 93.4 percent of original size 667 [2021-02-24 00:17:57,862 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-02-24 00:17:57,865 WARN L141 QuantifierPusher]: treesize reduction 23, result has 89.9 percent of original size [2021-02-24 00:17:57,868 WARN L147 QuantifierPusher]: treesize reduction 23, result has 89.9 percent of original size 205 [2021-02-24 00:17:57,950 WARN L141 QuantifierPusher]: treesize reduction 32, result has 67.3 percent of original size [2021-02-24 00:17:57,951 WARN L147 QuantifierPusher]: treesize reduction 32, result has 67.3 percent of original size 66 [2021-02-24 00:17:58,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:58,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:58,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:58,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:58,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:58,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 00:17:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:58,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:58,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-02-24 00:17:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:58,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:58,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:58,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-24 00:17:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:58,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:58,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-24 00:17:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:58,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:58,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-24 00:17:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:58,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:58,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-24 00:17:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:58,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:58,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:58,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:58,281 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-24 00:17:58,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092308629] [2021-02-24 00:17:58,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:17:58,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2021-02-24 00:17:58,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529628326] [2021-02-24 00:17:58,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-24 00:17:58,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:58,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-24 00:17:58,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=466, Unknown=0, NotChecked=0, Total=552 [2021-02-24 00:17:58,285 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand 24 states. [2021-02-24 00:18:00,001 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-24 00:18:00,246 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-02-24 00:18:01,755 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2021-02-24 00:18:02,484 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-02-24 00:18:03,539 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 55 [2021-02-24 00:18:03,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:18:03,555 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2021-02-24 00:18:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-24 00:18:03,556 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 82 [2021-02-24 00:18:03,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:18:03,557 INFO L225 Difference]: With dead ends: 71 [2021-02-24 00:18:03,557 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:18:03,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=271, Invalid=1535, Unknown=0, NotChecked=0, Total=1806 [2021-02-24 00:18:03,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:18:03,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:18:03,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:18:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:18:03,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2021-02-24 00:18:03,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:18:03,561 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:18:03,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-02-24 00:18:03,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:18:03,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:18:03,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 00:18:03,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:18:04,049 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-02-24 00:18:04,419 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-02-24 00:18:04,602 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-02-24 00:18:04,778 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2021-02-24 00:18:05,200 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-02-24 00:18:05,808 WARN L202 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2021-02-24 00:18:05,939 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2021-02-24 00:18:06,234 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2021-02-24 00:18:06,238 INFO L189 CegarLoopUtils]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-02-24 00:18:06,238 INFO L189 CegarLoopUtils]: For program point L18-2(line 18) no Hoare annotation was computed. [2021-02-24 00:18:06,238 INFO L189 CegarLoopUtils]: For program point L18-3(line 18) no Hoare annotation was computed. [2021-02-24 00:18:06,238 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 18) no Hoare annotation was computed. [2021-02-24 00:18:06,238 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 18) no Hoare annotation was computed. [2021-02-24 00:18:06,239 INFO L192 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: true [2021-02-24 00:18:06,239 INFO L192 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: true [2021-02-24 00:18:06,239 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:18:06,239 INFO L192 CegarLoopUtils]: At program point L18-3(line 18) the Hoare annotation is: true [2021-02-24 00:18:06,239 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 00:18:06,239 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 18) the Hoare annotation is: true [2021-02-24 00:18:06,239 INFO L185 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)|)) [2021-02-24 00:18:06,240 INFO L192 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: true [2021-02-24 00:18:06,240 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:18:06,240 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:18:06,240 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:18:06,240 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:18:06,240 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:18:06,241 INFO L192 CegarLoopUtils]: At program point assume_abort_if_notENTRY(lines 20 22) the Hoare annotation is: true [2021-02-24 00:18:06,242 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) [2021-02-24 00:18:06,242 INFO L185 CegarLoopUtils]: At program point L21-1(line 21) the Hoare annotation is: (= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|) [2021-02-24 00:18:06,242 INFO L185 CegarLoopUtils]: At program point L21-3(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))) [2021-02-24 00:18:06,242 INFO L185 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))) [2021-02-24 00:18:06,242 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 33 61) the Hoare annotation is: true [2021-02-24 00:18:06,243 INFO L185 CegarLoopUtils]: At program point L56(line 56) the Hoare annotation is: (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) [2021-02-24 00:18:06,243 INFO L185 CegarLoopUtils]: At program point L56-1(line 56) the Hoare annotation is: (let ((.cse0 (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296)) (.cse1 (* main_~index1~0 (- 1)))) (and (<= |main_#t~post11| (+ (* 4294967296 (div (+ |main_#t~post11| .cse0 .cse1 1) 4294967296)) 4294967294)) (<= main_~index2~0 (+ (* 4294967296 (div (+ .cse0 main_~index2~0 .cse1 1) 4294967296)) 4294967294)))) [2021-02-24 00:18:06,243 INFO L185 CegarLoopUtils]: At program point L56-2(line 56) the Hoare annotation is: (and (<= |main_#t~post11| (+ (* 4294967296 (div (+ |main_#t~post11| (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) (<= (+ (* 4294967296 (div (+ (* (div main_~index2~0 4294967296) 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0)) [2021-02-24 00:18:06,243 INFO L185 CegarLoopUtils]: At program point L48(line 48) the Hoare annotation is: (let ((.cse5 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse5)) (.cse4 (div main_~index1~0 4294967296))) (and (<= main_~index2~0 (+ .cse0 99999)) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse1 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (<= .cse1 (let ((.cse2 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (+ .cse2 (* 4294967296 (div (+ (* .cse2 (- 1)) .cse1) 4294967296))))))) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 .cse4) main_~index2~0))))) [2021-02-24 00:18:06,244 INFO L185 CegarLoopUtils]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse8 (div main_~index2~0 4294967296))) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse4 (* .cse8 (- 17179869184))) (.cse5 (* main_~index2~0 4))) (let ((.cse1 (select .cse3 (+ .cse4 .cse5 |main_~#array~0.offset|))) (.cse0 (* 4294967296 .cse8)) (.cse7 (div main_~index1~0 4294967296))) (and (<= main_~index2~0 (+ .cse0 99999)) (or (<= (let ((.cse2 (select .cse3 (+ .cse4 .cse5 |main_~#array~0.offset| (- 4))))) (+ (* 4294967296 (div (+ .cse1 (* .cse2 (- 1)) 4294967295) 4294967296)) .cse2)) .cse1) (< (+ .cse0 |main_#t~post7| 1) (+ (* 4294967296 (div |main_#t~post7| 4294967296)) main_~index2~0))) (<= .cse1 (let ((.cse6 (select .cse3 (+ (* .cse7 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (+ .cse6 (* 4294967296 (div (+ (* .cse6 (- 1)) .cse1) 4294967296))))) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 .cse7) main_~index2~0)) (<= (* 4294967296 (div (+ (* .cse8 4294967296) |main_#t~post7| (* main_~index2~0 (- 1)) 4294967296) 4294967296)) |main_#t~post7|))))) [2021-02-24 00:18:06,244 INFO L185 CegarLoopUtils]: At program point L48-2(line 48) the Hoare annotation is: (let ((.cse11 (div main_~index2~0 4294967296))) (let ((.cse5 (select |#memory_int| |main_~#array~0.base|)) (.cse7 (* .cse11 (- 17179869184))) (.cse8 (* main_~index2~0 4))) (let ((.cse4 (select .cse5 (+ .cse7 .cse8 |main_~#array~0.offset| (- 4))))) (let ((.cse3 (* .cse4 (- 1))) (.cse0 (* 4294967296 .cse11)) (.cse9 (* .cse11 4294967296)) (.cse10 (* main_~index2~0 (- 1)))) (and (let ((.cse1 (div main_~index1~0 4294967296))) (or (< (+ .cse0 main_~index1~0) (+ (* 4294967296 .cse1) main_~index2~0)) (let ((.cse2 (select .cse5 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (+ (* 4294967296 (div (+ .cse2 .cse3 4294967295) 4294967296)) .cse4) .cse2)))) (<= main_~index2~0 (+ .cse0 99999)) (or (let ((.cse6 (select .cse5 (+ .cse7 .cse8 |main_~#array~0.offset|)))) (<= (+ (* 4294967296 (div (+ .cse6 .cse3 4294967295) 4294967296)) .cse4) .cse6)) (< (+ .cse0 |main_#t~post7| 1) (+ (* 4294967296 (div |main_#t~post7| 4294967296)) main_~index2~0))) (<= (+ (* 4294967296 (div (+ .cse9 .cse10 main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0) (<= (* 4294967296 (div (+ .cse9 |main_#t~post7| .cse10 4294967296) 4294967296)) |main_#t~post7|)))))) [2021-02-24 00:18:06,244 INFO L185 CegarLoopUtils]: At program point L40(line 40) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-24 00:18:06,244 INFO L185 CegarLoopUtils]: At program point L40-1(line 40) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-24 00:18:06,244 INFO L185 CegarLoopUtils]: At program point L57(line 57) the Hoare annotation is: (<= (+ (* 4294967296 (div (+ (* (div main_~index2~0 4294967296) 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0) [2021-02-24 00:18:06,245 INFO L185 CegarLoopUtils]: At program point L57-1(line 57) the Hoare annotation is: (let ((.cse0 (* (div main_~index2~0 4294967296) 4294967296)) (.cse1 (* main_~index2~0 (- 1)))) (and (<= (+ (* 4294967296 (div (+ .cse0 |main_#t~post12| .cse1 4294967295) 4294967296)) 1) |main_#t~post12|) (<= (+ (* 4294967296 (div (+ .cse0 .cse1 main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0))) [2021-02-24 00:18:06,245 INFO L185 CegarLoopUtils]: At program point L57-2(line 57) the Hoare annotation is: (let ((.cse0 (div main_~index2~0 4294967296))) (and (<= (+ (* 4294967296 (div (+ (* .cse0 4294967296) |main_#t~post12| (* main_~index2~0 (- 1)) 4294967295) 4294967296)) 1) |main_#t~post12|) (<= (+ (* 4294967296 .cse0) main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)))) [2021-02-24 00:18:06,245 INFO L192 CegarLoopUtils]: At program point L53(lines 53 59) the Hoare annotation is: true [2021-02-24 00:18:06,246 INFO L185 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: (let ((.cse5 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse5))) (and (let ((.cse1 (div main_~index1~0 4294967296))) (or (< (+ .cse0 main_~index1~0) (+ (* 4294967296 .cse1) main_~index2~0)) (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse2 (select .cse4 (+ (* .cse1 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse3 (select .cse4 (+ (* .cse5 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset| (- 4))))) (+ (* 4294967296 (div (+ .cse2 (* .cse3 (- 1)) 4294967295) 4294967296)) .cse3)) .cse2))))) (<= main_~index2~0 (+ .cse0 99999)) (<= (+ (* 4294967296 (div (+ (* .cse5 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0)))) [2021-02-24 00:18:06,246 INFO L185 CegarLoopUtils]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse6 (select |#memory_int| |main_~#array~0.base|)) (.cse0 (div main_~index1~0 4294967296)) (.cse3 (* main_~index1~0 4))) (let ((.cse7 (* main_~index1~0 (- 1))) (.cse4 (select .cse6 (+ (* .cse0 (- 17179869184)) .cse3 |main_~#array~0.offset|))) (.cse2 (div main_~index2~0 4294967296))) (and (let ((.cse1 (* main_~index2~0 4))) (or (not (= (+ (* .cse0 17179869184) .cse1) (+ (* .cse2 17179869184) .cse3))) (<= .cse4 (let ((.cse5 (select .cse6 (+ (* .cse2 (- 17179869184)) .cse1 |main_~#array~0.offset| (- 4))))) (+ .cse5 (* 4294967296 (div (+ .cse4 (* .cse5 (- 1))) 4294967296))))))) (<= main_~index2~0 (+ (* 4294967296 .cse2) 99999)) (<= |main_#t~post8| (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) |main_#t~post8| .cse7) 4294967296)) 99999)) (or (<= |main_#t~post8| (+ (* 4294967296 (div (+ |main_#t~post8| (* .cse0 4294967296) .cse7 (- 1)) 4294967296)) 4294967295)) (<= (let ((.cse8 (select .cse6 (+ (* |main_#t~post8| 4) (* (div |main_#t~post8| 4294967296) (- 17179869184)) |main_~#array~0.offset| (- 4))))) (+ (* 4294967296 (div (+ .cse4 (* .cse8 (- 1)) 4294967295) 4294967296)) .cse8)) .cse4)) (<= (+ (* 4294967296 (div (+ (* .cse2 4294967296) (* main_~index2~0 (- 1)) main_~index1~0 4294967295) 4294967296)) 1) main_~index1~0)))) [2021-02-24 00:18:06,246 INFO L185 CegarLoopUtils]: At program point L49-2(line 49) the Hoare annotation is: (let ((.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse5 (div main_~index1~0 4294967296)) (.cse4 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse4)) (.cse6 (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296)) (.cse7 (* main_~index1~0 (- 1))) (.cse2 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (and (<= main_~index2~0 (+ .cse0 99998)) (or (<= (let ((.cse1 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse2 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse2) (<= (+ .cse0 main_~index1~0) (+ (* 4294967296 .cse5) main_~index2~0))) (<= main_~index2~0 (+ (* 4294967296 (div (+ .cse6 main_~index2~0 .cse7 1) 4294967296)) 4294967294)) (<= |main_#t~post8| (+ (* 4294967296 (div (+ .cse6 |main_#t~post8| .cse7) 4294967296)) 99999)) (or (<= |main_#t~post8| (+ (* 4294967296 (div (+ |main_#t~post8| (* .cse5 4294967296) .cse7 (- 1)) 4294967296)) 4294967295)) (<= (let ((.cse8 (select .cse3 (+ (* |main_#t~post8| 4) (* (div |main_#t~post8| 4294967296) (- 17179869184)) |main_~#array~0.offset| (- 4))))) (+ (* 4294967296 (div (+ .cse2 (* .cse8 (- 1)) 4294967295) 4294967296)) .cse8)) .cse2))))) [2021-02-24 00:18:06,247 INFO L185 CegarLoopUtils]: At program point L45-1(lines 43 51) the Hoare annotation is: (let ((.cse4 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse4))) (or (and (<= main_~index2~0 (+ .cse0 99998)) (let ((.cse5 (div main_~index1~0 4294967296))) (or (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse2 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse1 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse2 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse2))) (<= (+ .cse0 main_~index1~0) (+ (* 4294967296 .cse5) main_~index2~0)))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294))) (and (<= main_~index2~0 (+ .cse0 99999)) (= main_~loop_entered~0 0))))) [2021-02-24 00:18:06,247 INFO L185 CegarLoopUtils]: At program point L45-2(lines 34 61) the Hoare annotation is: (or (let ((.cse0 (div main_~index2~0 4294967296))) (and (<= main_~index2~0 (+ (* 4294967296 .cse0) 99998)) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse2 (select .cse3 (+ (* (div main_~index1~0 4294967296) (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse1 (select .cse3 (+ (* .cse0 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse2 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse2))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)))) (= main_~loop_entered~0 0)) [2021-02-24 00:18:06,247 INFO L185 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-24 00:18:06,247 INFO L185 CegarLoopUtils]: At program point L41-1(line 41) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-24 00:18:06,247 INFO L192 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: true [2021-02-24 00:18:06,248 INFO L185 CegarLoopUtils]: At program point L54-2(lines 54 58) the Hoare annotation is: (let ((.cse5 (div main_~index1~0 4294967296))) (let ((.cse4 (div main_~index2~0 4294967296)) (.cse0 (* 4294967296 .cse5))) (or (and (<= main_~index1~0 (+ .cse0 100000)) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse2 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse1 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse2 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse2))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294))) (<= (+ (* 4294967296 .cse4) main_~index1~0 1) (+ .cse0 main_~index2~0))))) [2021-02-24 00:18:06,249 INFO L185 CegarLoopUtils]: At program point L50(line 50) the Hoare annotation is: (let ((.cse4 (div main_~index2~0 4294967296))) (let ((.cse0 (* 4294967296 .cse4))) (and (<= main_~index2~0 (+ .cse0 99998)) (let ((.cse5 (div main_~index1~0 4294967296))) (or (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse2 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse1 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse1 (* 4294967296 (div (+ .cse2 (* .cse1 (- 1)) 4294967295) 4294967296)))) .cse2))) (<= (+ .cse0 main_~index1~0) (+ (* 4294967296 .cse5) main_~index2~0)))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294))))) [2021-02-24 00:18:06,249 INFO L185 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)) (or (<= main_~index2~0 (+ .cse0 99998)) (= main_~loop_entered~0 0)) (<= (+ .cse0 main_~index1~0 1) (+ (* 4294967296 (div main_~index1~0 4294967296)) main_~index2~0)))) [2021-02-24 00:18:06,250 INFO L185 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)))) [2021-02-24 00:18:06,250 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 33 61) the Hoare annotation is: true [2021-02-24 00:18:06,250 INFO L185 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-24 00:18:06,250 INFO L192 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: true [2021-02-24 00:18:06,250 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 33 61) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-24 00:18:06,250 INFO L185 CegarLoopUtils]: At program point L55(line 55) the Hoare annotation is: (let ((.cse3 (div main_~index2~0 4294967296))) (and (let ((.cse2 (select |#memory_int| |main_~#array~0.base|))) (let ((.cse1 (select .cse2 (+ (* (div main_~index1~0 4294967296) (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (let ((.cse0 (select .cse2 (+ (* .cse3 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (+ .cse0 (* 4294967296 (div (+ .cse1 (* .cse0 (- 1)) 4294967295) 4294967296)))) .cse1))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) (<= main_~index2~0 (+ (* 4294967296 .cse3) 99999)))) [2021-02-24 00:18:06,251 INFO L185 CegarLoopUtils]: At program point L55-1(line 55) the Hoare annotation is: (let ((.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse4 (div main_~index2~0 4294967296))) (let ((.cse0 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (let ((.cse2 (* .cse0 (- 1)))) (and (let ((.cse1 (select .cse3 (+ (* (div main_~index1~0 4294967296) (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (+ .cse0 (* 4294967296 (div (+ .cse1 .cse2 4294967295) 4294967296))) .cse1)) (<= |main_#t~mem9| (+ .cse0 (* 4294967296 (div (+ .cse2 |main_#t~mem9|) 4294967296)))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) (<= main_~index2~0 (+ (* 4294967296 .cse4) 99999)))))) [2021-02-24 00:18:06,251 INFO L185 CegarLoopUtils]: At program point L55-2(line 55) the Hoare annotation is: (let ((.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse6 (div main_~index2~0 4294967296))) (let ((.cse0 (select .cse3 (+ (* .cse6 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (let ((.cse2 (* .cse0 (- 1))) (.cse5 (* 4294967296 (div |main_#t~mem10| 4294967296))) (.cse4 (+ (* 4294967296 (div |main_#t~mem9| 4294967296)) |main_#t~mem10|))) (and (let ((.cse1 (select .cse3 (+ (* (div main_~index1~0 4294967296) (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)))) (<= (+ .cse0 (* 4294967296 (div (+ .cse1 .cse2 4294967295) 4294967296))) .cse1)) (<= |main_#t~mem9| (+ .cse0 (* 4294967296 (div (+ .cse2 |main_#t~mem9|) 4294967296)))) (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) (< .cse4 (+ |main_#t~mem9| .cse5 1)) (<= main_~index2~0 (+ (* 4294967296 .cse6) 99999)) (<= (+ |main_#t~mem9| .cse5) .cse4))))) [2021-02-24 00:18:06,251 INFO L185 CegarLoopUtils]: At program point L55-3(line 55) the Hoare annotation is: (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) [2021-02-24 00:18:06,251 INFO L185 CegarLoopUtils]: At program point L55-4(line 55) the Hoare annotation is: (<= main_~index2~0 (+ (* 4294967296 (div (+ (* (div (+ main_~index1~0 (- 1)) 4294967296) 4294967296) main_~index2~0 (* main_~index1~0 (- 1)) 1) 4294967296)) 4294967294)) [2021-02-24 00:18:06,252 INFO L185 CegarLoopUtils]: At program point L47(line 47) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div main_~index2~0 4294967296))) (.cse0 (div main_~index1~0 4294967296))) (and (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* .cse0 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|)) |main_#t~mem5|) (<= main_~index2~0 (+ .cse1 99999)) (<= (+ .cse1 main_~index1~0 1) (+ (* 4294967296 .cse0) main_~index2~0)))) [2021-02-24 00:18:06,252 INFO L185 CegarLoopUtils]: At program point L47-1(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))))) [2021-02-24 00:18:06,252 INFO L185 CegarLoopUtils]: At program point L47-2(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))))) [2021-02-24 00:18:06,252 INFO L185 CegarLoopUtils]: At program point L47-3(line 47) the Hoare annotation is: (let ((.cse4 (div main_~index2~0 4294967296)) (.cse3 (select |#memory_int| |main_~#array~0.base|)) (.cse5 (div main_~index1~0 4294967296))) (let ((.cse0 (select .cse3 (+ (* .cse5 (- 17179869184)) (* main_~index1~0 4) |main_~#array~0.offset|))) (.cse1 (* 4294967296 .cse4))) (and (= .cse0 |main_#t~mem5|) (<= main_~index2~0 (+ .cse1 99999)) (let ((.cse2 (select .cse3 (+ (* .cse4 (- 17179869184)) (* main_~index2~0 4) |main_~#array~0.offset|)))) (<= .cse2 (+ .cse0 (* 4294967296 (div (+ (* .cse0 (- 1)) .cse2) 4294967296))))) (<= (+ .cse1 main_~index1~0 1) (+ (* 4294967296 .cse5) main_~index2~0))))) [2021-02-24 00:18:06,253 INFO L185 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: (= main_~loop_entered~0 0) [2021-02-24 00:18:06,253 INFO L192 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: true [2021-02-24 00:18:06,253 INFO L192 CegarLoopUtils]: At program point L35-1(line 35) the Hoare annotation is: true [2021-02-24 00:18:06,253 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 23 29) the Hoare annotation is: true [2021-02-24 00:18:06,253 INFO L185 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:18:06,253 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 23 29) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:18:06,253 INFO L185 CegarLoopUtils]: At program point L25(lines 25 27) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:18:06,253 INFO L185 CegarLoopUtils]: At program point L26-1(line 26) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:18:06,254 INFO L185 CegarLoopUtils]: At program point L25-2(lines 23 29) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:18:06,254 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 00:18:06,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:18:06 BoogieIcfgContainer [2021-02-24 00:18:06,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:18:06,306 INFO L168 Benchmark]: Toolchain (without parser) took 19334.75 ms. Allocated memory was 160.4 MB in the beginning and 285.2 MB in the end (delta: 124.8 MB). Free memory was 137.0 MB in the beginning and 238.5 MB in the end (delta: -101.5 MB). Peak memory consumption was 159.4 MB. Max. memory is 8.0 GB. [2021-02-24 00:18:06,307 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 160.4 MB. Free memory is still 135.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:18:06,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.18 ms. Allocated memory is still 160.4 MB. Free memory was 135.7 MB in the beginning and 125.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 00:18:06,307 INFO L168 Benchmark]: Boogie Preprocessor took 76.38 ms. Allocated memory is still 160.4 MB. Free memory was 125.9 MB in the beginning and 124.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 00:18:06,308 INFO L168 Benchmark]: RCFGBuilder took 444.88 ms. Allocated memory is still 160.4 MB. Free memory was 124.1 MB in the beginning and 105.6 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-02-24 00:18:06,310 INFO L168 Benchmark]: TraceAbstraction took 18415.35 ms. Allocated memory was 160.4 MB in the beginning and 285.2 MB in the end (delta: 124.8 MB). Free memory was 105.3 MB in the beginning and 238.5 MB in the end (delta: -133.3 MB). Peak memory consumption was 127.9 MB. Max. memory is 8.0 GB. [2021-02-24 00:18:06,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 160.4 MB. Free memory is still 135.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 372.18 ms. Allocated memory is still 160.4 MB. Free memory was 135.7 MB in the beginning and 125.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 76.38 ms. Allocated memory is still 160.4 MB. Free memory was 125.9 MB in the beginning and 124.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 444.88 ms. Allocated memory is still 160.4 MB. Free memory was 124.1 MB in the beginning and 105.6 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18415.35 ms. Allocated memory was 160.4 MB in the beginning and 285.2 MB in the end (delta: 124.8 MB). Free memory was 105.3 MB in the beginning and 238.5 MB in the end (delta: -133.3 MB). Peak memory consumption was 127.9 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: ((index2 <= 4294967296 * (index2 / 4294967296) + 99998 && (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)) && index2 <= 4294967296 * (((index1 + -1) / 4294967296 * 4294967296 + index2 + index1 * -1 + 1) / 4294967296) + 4294967294) || (index2 <= 4294967296 * (index2 / 4294967296) + 99999 && loop_entered == 0) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((index1 <= 4294967296 * (index1 / 4294967296) + 100000 && 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]) && index2 <= 4294967296 * (((index1 + -1) / 4294967296 * 4294967296 + index2 + index1 * -1 + 1) / 4294967296) + 4294967294) || 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) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.5s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 310 SDtfs, 274 SDslu, 1574 SDs, 0 SdLazy, 1792 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 66 SyntacticMatches, 11 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 66 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 66 LocationsWithAnnotation, 140 PreInvPairs, 218 NumberOfFragments, 2675 HoareAnnotationTreeSize, 140 FomulaSimplifications, 2554 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 66 FomulaSimplificationsInter, 3335 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 473461 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 97/112 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...