/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-lit/jm2006.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:21:27,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:21:27,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:21:28,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:21:28,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 00:21:28,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 00:21:28,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 00:21:28,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 00:21:28,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 00:21:28,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 00:21:28,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 00:21:28,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 00:21:28,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 00:21:28,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 00:21:28,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 00:21:28,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 00:21:28,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 00:21:28,182 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 00:21:28,219 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:21:28,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:21:28,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:21:28,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:21:28,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:21:28,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:21:28,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:21:28,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:21:28,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:21:28,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:21:28,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:21:28,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:21:28,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:21:28,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:21:28,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:21:28,233 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:21:28,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:21:28,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:21:28,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:21:28,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:21:28,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:21:28,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:21:28,235 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:21:28,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:21:28,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:21:28,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:21:28,891 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:21:28,893 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:21:28,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-02-24 00:21:29,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1d59554/ecebcba1845246fc9fa8d7c408c9fd39/FLAG6b785306d [2021-02-24 00:21:29,836 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:21:29,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-02-24 00:21:29,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1d59554/ecebcba1845246fc9fa8d7c408c9fd39/FLAG6b785306d [2021-02-24 00:21:30,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de1d59554/ecebcba1845246fc9fa8d7c408c9fd39 [2021-02-24 00:21:30,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:21:30,236 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:21:30,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:21:30,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:21:30,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:21:30,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:21:30" (1/1) ... [2021-02-24 00:21:30,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cfca31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30, skipping insertion in model container [2021-02-24 00:21:30,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:21:30" (1/1) ... [2021-02-24 00:21:30,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:21:30,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:21:30,644 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2021-02-24 00:21:30,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:21:30,674 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:21:30,711 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2021-02-24 00:21:30,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:21:30,747 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:21:30,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30 WrapperNode [2021-02-24 00:21:30,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:21:30,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:21:30,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:21:30,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:21:30,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30" (1/1) ... [2021-02-24 00:21:30,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30" (1/1) ... [2021-02-24 00:21:30,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30" (1/1) ... [2021-02-24 00:21:30,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30" (1/1) ... [2021-02-24 00:21:30,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30" (1/1) ... [2021-02-24 00:21:30,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30" (1/1) ... [2021-02-24 00:21:30,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30" (1/1) ... [2021-02-24 00:21:30,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:21:30,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:21:30,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:21:30,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:21:30,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30" (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 00:21:30,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:21:31,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:21:31,000 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:21:31,000 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 00:21:31,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:21:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:21:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:21:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:21:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:21:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 00:21:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:21:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 00:21:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:21:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:21:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:21:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:21:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:21:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:21:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:21:31,602 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:21:31,603 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 00:21:31,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:21:31 BoogieIcfgContainer [2021-02-24 00:21:31,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:21:31,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:21:31,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:21:31,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:21:31,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:21:30" (1/3) ... [2021-02-24 00:21:31,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77431381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:21:31, skipping insertion in model container [2021-02-24 00:21:31,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:21:30" (2/3) ... [2021-02-24 00:21:31,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77431381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:21:31, skipping insertion in model container [2021-02-24 00:21:31,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:21:31" (3/3) ... [2021-02-24 00:21:31,685 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2021-02-24 00:21:31,707 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:21:31,716 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:21:31,752 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:21:31,793 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:21:31,793 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:21:31,793 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:21:31,793 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:21:31,794 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:21:31,794 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:21:31,794 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:21:31,794 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:21:31,847 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2021-02-24 00:21:31,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-02-24 00:21:31,871 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:21:31,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:21:31,875 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:21:31,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:21:31,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2094402185, now seen corresponding path program 1 times [2021-02-24 00:21:31,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:21:31,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905215254] [2021-02-24 00:21:31,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:21:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:32,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:32,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:32,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:32,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:21:32,607 WARN L141 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-02-24 00:21:32,615 WARN L147 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size 25 [2021-02-24 00:21:32,666 WARN L141 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-02-24 00:21:32,669 WARN L147 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size 21 [2021-02-24 00:21:32,698 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-24 00:21:32,700 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-24 00:21:32,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:32,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:21:32,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:32,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:21:32,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:32,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:32,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:21:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:32,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:32,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:21:32,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905215254] [2021-02-24 00:21:32,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:21:32,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 00:21:32,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667437037] [2021-02-24 00:21:32,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 00:21:32,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:21:32,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 00:21:32,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-24 00:21:32,892 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 9 states. [2021-02-24 00:21:33,559 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-24 00:21:34,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:21:34,089 INFO L93 Difference]: Finished difference Result 73 states and 79 transitions. [2021-02-24 00:21:34,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 00:21:34,091 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2021-02-24 00:21:34,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:21:34,110 INFO L225 Difference]: With dead ends: 73 [2021-02-24 00:21:34,110 INFO L226 Difference]: Without dead ends: 42 [2021-02-24 00:21:34,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-02-24 00:21:34,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-02-24 00:21:34,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2021-02-24 00:21:34,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-02-24 00:21:34,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-02-24 00:21:34,182 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 34 [2021-02-24 00:21:34,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:21:34,183 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-02-24 00:21:34,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 00:21:34,183 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-02-24 00:21:34,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-02-24 00:21:34,185 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:21:34,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:21:34,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:21:34,186 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:21:34,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:21:34,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1979975, now seen corresponding path program 1 times [2021-02-24 00:21:34,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:21:34,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190536753] [2021-02-24 00:21:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:21:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:34,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:34,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:34,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:34,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:21:34,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:34,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 00:21:34,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:34,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-24 00:21:34,351 WARN L141 QuantifierPusher]: treesize reduction 6, result has 80.6 percent of original size [2021-02-24 00:21:34,354 WARN L147 QuantifierPusher]: treesize reduction 6, result has 80.6 percent of original size 25 [2021-02-24 00:21:34,384 WARN L141 QuantifierPusher]: treesize reduction 6, result has 77.8 percent of original size [2021-02-24 00:21:34,386 WARN L147 QuantifierPusher]: treesize reduction 6, result has 77.8 percent of original size 21 [2021-02-24 00:21:34,414 WARN L141 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-02-24 00:21:34,416 WARN L147 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size 9 [2021-02-24 00:21:34,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:34,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:21:34,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:34,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:21:34,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:34,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:34,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:21:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:21:34,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:21:34,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:21:34,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:21:34,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190536753] [2021-02-24 00:21:34,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:21:34,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-24 00:21:34,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280117215] [2021-02-24 00:21:34,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 00:21:34,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:21:34,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 00:21:34,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-02-24 00:21:34,598 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 11 states. [2021-02-24 00:21:35,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:21:35,308 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-02-24 00:21:35,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 00:21:35,308 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2021-02-24 00:21:35,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:21:35,310 INFO L225 Difference]: With dead ends: 42 [2021-02-24 00:21:35,310 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:21:35,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2021-02-24 00:21:35,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:21:35,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:21:35,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:21:35,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:21:35,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2021-02-24 00:21:35,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:21:35,314 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:21:35,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 00:21:35,314 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:21:35,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:21:35,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:21:35,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:21:35,847 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 21 [2021-02-24 00:21:36,141 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 27 [2021-02-24 00:21:36,319 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 27 [2021-02-24 00:21:36,536 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 21 [2021-02-24 00:21:36,807 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 24 [2021-02-24 00:21:37,086 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 24 [2021-02-24 00:21:37,173 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-02-24 00:21:37,173 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-02-24 00:21:37,173 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-02-24 00:21:37,174 INFO L192 CegarLoopUtils]: At program point L4-3(line 4) the Hoare annotation is: true [2021-02-24 00:21:37,175 INFO L192 CegarLoopUtils]: At program point L4-4(line 4) the Hoare annotation is: true [2021-02-24 00:21:37,175 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:21:37,175 INFO L192 CegarLoopUtils]: At program point L4-5(line 4) the Hoare annotation is: true [2021-02-24 00:21:37,175 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 00:21:37,176 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:21:37,176 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-24 00:21:37,176 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__return_72~0 |old(~__return_72~0)|) (= |old(#valid)| |#valid|)) [2021-02-24 00:21:37,177 INFO L192 CegarLoopUtils]: At program point L4(line 4) the Hoare annotation is: true [2021-02-24 00:21:37,177 INFO L192 CegarLoopUtils]: At program point L4-1(line 4) the Hoare annotation is: true [2021-02-24 00:21:37,177 INFO L192 CegarLoopUtils]: At program point L4-2(line 4) the Hoare annotation is: true [2021-02-24 00:21:37,177 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:21:37,177 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:21:37,178 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:21:37,178 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:21:37,178 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:21:37,178 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2021-02-24 00:21:37,178 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-02-24 00:21:37,179 INFO L189 CegarLoopUtils]: For program point L7-1(line 7) no Hoare annotation was computed. [2021-02-24 00:21:37,179 INFO L189 CegarLoopUtils]: For program point L7-3(lines 6 8) no Hoare annotation was computed. [2021-02-24 00:21:37,179 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2021-02-24 00:21:37,179 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,179 INFO L185 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,180 INFO L185 CegarLoopUtils]: At program point L58(line 58) the Hoare annotation is: (and (= |old(~__return_72~0)| ~__return_72~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2021-02-24 00:21:37,180 INFO L185 CegarLoopUtils]: At program point L25(lines 25 68) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,180 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 13 70) the Hoare annotation is: (or (= |old(~__return_72~0)| ~__return_72~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2021-02-24 00:21:37,180 INFO L185 CegarLoopUtils]: At program point L54(line 54) the Hoare annotation is: false [2021-02-24 00:21:37,180 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,181 INFO L185 CegarLoopUtils]: At program point L19(lines 19 69) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,181 INFO L185 CegarLoopUtils]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (< 0 (+ main_~main__y~0 1))) (.cse1 (= |old(~__return_72~0)| ~__return_72~0)) (.cse2 (not (= main_~__tmp_1~0 0))) (.cse3 (<= main_~main__y~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse5 (+ main_~main__j~0 main_~main__x~0)) (.cse4 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 .cse1 .cse2 .cse3 (<= .cse4 .cse5) (<= .cse5 .cse4))))) [2021-02-24 00:21:37,181 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,182 INFO L185 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,182 INFO L185 CegarLoopUtils]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 (< 0 (+ main_~main__y~0 1))) (.cse1 (= |old(~__return_72~0)| ~__return_72~0)) (.cse2 (<= main_~main__y~0 0))) (or (and .cse0 .cse1 .cse2 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse4 (+ main_~main__j~0 main_~main__x~0)) (.cse3 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 .cse1 .cse2 (<= .cse3 .cse4) (<= .cse4 .cse3))))) [2021-02-24 00:21:37,182 INFO L185 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,183 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 13 70) the Hoare annotation is: (or (= |old(~__return_72~0)| ~__return_72~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2021-02-24 00:21:37,183 INFO L185 CegarLoopUtils]: At program point L44(lines 44 66) the Hoare annotation is: (let ((.cse1 (<= main_~main__y~0 0)) (.cse7 (+ main_~main__j~0 main_~main__x~0)) (.cse5 (< 0 (+ main_~main__y~0 1))) (.cse8 (+ main_~main__y~0 main_~main__i~0))) (let ((.cse0 (= |old(~__return_72~0)| ~__return_72~0)) (.cse3 (or .cse5 (<= main_~main__j~0 .cse8))) (.cse2 (<= .cse8 .cse7)) (.cse4 (or (<= .cse8 main_~main__j~0) .cse1)) (.cse6 (<= .cse7 .cse8))) (or (and .cse0 (or .cse1 .cse2) .cse3 .cse4 (<= main_~main__i~0 main_~main__x~0) (or .cse5 .cse6) (<= main_~main__x~0 main_~main__i~0)) (and .cse0 .cse3 .cse2 .cse4 .cse6)))) [2021-02-24 00:21:37,184 INFO L185 CegarLoopUtils]: At program point L40(lines 30 68) the Hoare annotation is: (let ((.cse1 (+ main_~main__j~0 main_~main__x~0)) (.cse0 (+ main_~main__y~0 main_~main__i~0))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-24 00:21:37,184 INFO L185 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: (let ((.cse1 (+ main_~main__y~0 main_~main__i~0)) (.cse0 (+ main_~main__j~0 main_~main__x~0 1))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-24 00:21:37,184 INFO L185 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: (let ((.cse1 (+ main_~main__j~0 main_~main__x~0)) (.cse0 (+ main_~main__y~0 main_~main__i~0))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-24 00:21:37,184 INFO L185 CegarLoopUtils]: At program point L65(line 65) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,185 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (and (= |old(~__return_72~0)| ~__return_72~0) (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) [2021-02-24 00:21:37,185 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 53) the Hoare annotation is: false [2021-02-24 00:21:37,185 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 13 70) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,186 INFO L185 CegarLoopUtils]: At program point L59(line 59) the Hoare annotation is: (not (= main_~__VERIFIER_assert__cond~0 0)) [2021-02-24 00:21:37,186 INFO L185 CegarLoopUtils]: At program point L53(line 53) the Hoare annotation is: false [2021-02-24 00:21:37,186 INFO L185 CegarLoopUtils]: At program point L51(lines 51 60) the Hoare annotation is: (let ((.cse0 (< 0 (+ main_~main__y~0 1))) (.cse1 (= |old(~__return_72~0)| ~__return_72~0)) (.cse2 (not (= main_~__tmp_1~0 0))) (.cse3 (<= main_~main__y~0 0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse6 (+ main_~main__j~0 main_~main__x~0)) (.cse5 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= .cse5 .cse6) (<= .cse6 .cse5))))) [2021-02-24 00:21:37,186 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,187 INFO L185 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,187 INFO L185 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (< 0 (+ main_~main__y~0 1))) (.cse1 (= |old(~__return_72~0)| ~__return_72~0)) (.cse2 (not (= main_~__tmp_1~0 0))) (.cse3 (<= main_~main__y~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse5 (+ main_~main__j~0 main_~main__x~0)) (.cse4 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 .cse1 .cse2 .cse3 (<= .cse4 .cse5) (<= .cse5 .cse4))))) [2021-02-24 00:21:37,187 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,187 INFO L185 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-24 00:21:37,187 INFO L185 CegarLoopUtils]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 (< 0 (+ main_~main__y~0 1))) (.cse1 (= |old(~__return_72~0)| ~__return_72~0)) (.cse2 (<= main_~main__y~0 0))) (or (and .cse0 .cse1 .cse2 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse4 (+ main_~main__j~0 main_~main__x~0)) (.cse3 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 .cse1 .cse2 (<= .cse3 .cse4) (<= .cse4 .cse3))))) [2021-02-24 00:21:37,188 INFO L185 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: (let ((.cse1 (+ main_~main__y~0 main_~main__i~0)) (.cse0 (+ main_~main__j~0 main_~main__x~0 1))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-24 00:21:37,188 INFO L185 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: (let ((.cse1 (+ main_~main__j~0 main_~main__x~0)) (.cse0 (+ main_~main__y~0 main_~main__i~0))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-24 00:21:37,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:21:37 BoogieIcfgContainer [2021-02-24 00:21:37,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:21:37,226 INFO L168 Benchmark]: Toolchain (without parser) took 7005.51 ms. Allocated memory was 151.0 MB in the beginning and 230.7 MB in the end (delta: 79.7 MB). Free memory was 127.5 MB in the beginning and 201.6 MB in the end (delta: -74.0 MB). Peak memory consumption was 105.8 MB. Max. memory is 8.0 GB. [2021-02-24 00:21:37,227 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 124.1 MB in the end (delta: 414.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:21:37,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.40 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 00:21:37,229 INFO L168 Benchmark]: Boogie Preprocessor took 83.83 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 115.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 00:21:37,230 INFO L168 Benchmark]: RCFGBuilder took 777.46 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 133.3 MB in the end (delta: -18.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. [2021-02-24 00:21:37,231 INFO L168 Benchmark]: TraceAbstraction took 5604.78 ms. Allocated memory was 151.0 MB in the beginning and 230.7 MB in the end (delta: 79.7 MB). Free memory was 132.8 MB in the beginning and 201.6 MB in the end (delta: -68.7 MB). Peak memory consumption was 110.2 MB. Max. memory is 8.0 GB. [2021-02-24 00:21:37,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 124.1 MB in the end (delta: 414.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 503.40 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 83.83 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 115.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 777.46 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 133.3 MB in the end (delta: -18.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5604.78 ms. Allocated memory was 151.0 MB in the beginning and 230.7 MB in the end (delta: 79.7 MB). Free memory was 132.8 MB in the beginning and 201.6 MB in the end (delta: -68.7 MB). Peak memory consumption was 110.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (\old(__return_72) == __return_72 && main__y + main__i <= main__j + main__x) && main__j + main__x <= main__y + main__i - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: \old(__return_72) == __return_72 || !(__VERIFIER_assert__cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 151 SDslu, 204 SDs, 0 SdLazy, 343 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 49 LocationsWithAnnotation, 49 PreInvPairs, 71 NumberOfFragments, 579 HoareAnnotationTreeSize, 49 FomulaSimplifications, 1010 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 49 FomulaSimplificationsInter, 1171 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 13226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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...