/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 18:01:30,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 18:01:30,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 18:01:30,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 18:01:30,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 18:01:30,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 18:01:30,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 18:01:30,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 18:01:30,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 18:01:30,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 18:01:30,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 18:01:30,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 18:01:30,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 18:01:30,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 18:01:30,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 18:01:30,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 18:01:30,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 18:01:30,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 18:01:30,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 18:01:30,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 18:01:30,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 18:01:30,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 18:01:30,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 18:01:30,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 18:01:30,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 18:01:30,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 18:01:30,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 18:01:30,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 18:01:30,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 18:01:30,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 18:01:30,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 18:01:30,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 18:01:30,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 18:01:30,670 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 18:01:30,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 18:01:30,671 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 18:01:30,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 18:01:30,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 18:01:30,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 18:01:30,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 18:01:30,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 18:01:30,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 18:01:30,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 18:01:30,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 18:01:30,675 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 18:01:30,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 18:01:30,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 18:01:30,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 18:01:30,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 18:01:30,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 18:01:30,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 18:01:30,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 18:01:30,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 18:01:30,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 18:01:30,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 18:01:30,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 18:01:30,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 18:01:30,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 18:01:31,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 18:01:31,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 18:01:31,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 18:01:31,200 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 18:01:31,201 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 18:01:31,202 INFO L432 ainManager$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 [2021-02-19 18:01:31,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185c676ad/0f373eaee47f43a9b801c72e1f4cabe4/FLAG7a1da5733 [2021-02-19 18:01:31,904 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 18:01:31,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2021-02-19 18:01:31,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185c676ad/0f373eaee47f43a9b801c72e1f4cabe4/FLAG7a1da5733 [2021-02-19 18:01:32,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185c676ad/0f373eaee47f43a9b801c72e1f4cabe4 [2021-02-19 18:01:32,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 18:01:32,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 18:01:32,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 18:01:32,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 18:01:32,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 18:01:32,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 06:01:32" (1/1) ... [2021-02-19 18:01:32,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101215b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32, skipping insertion in model container [2021-02-19 18:01:32,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 06:01:32" (1/1) ... [2021-02-19 18:01:32,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 18:01:32,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 18:01:32,565 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] [2021-02-19 18:01:32,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 18:01:32,579 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 18:01:32,598 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] [2021-02-19 18:01:32,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 18:01:32,615 INFO L208 MainTranslator]: Completed translation [2021-02-19 18:01:32,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32 WrapperNode [2021-02-19 18:01:32,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 18:01:32,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 18:01:32,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 18:01:32,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 18:01:32,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32" (1/1) ... [2021-02-19 18:01:32,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32" (1/1) ... [2021-02-19 18:01:32,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32" (1/1) ... [2021-02-19 18:01:32,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32" (1/1) ... [2021-02-19 18:01:32,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32" (1/1) ... [2021-02-19 18:01:32,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32" (1/1) ... [2021-02-19 18:01:32,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32" (1/1) ... [2021-02-19 18:01:32,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 18:01:32,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 18:01:32,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 18:01:32,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 18:01:32,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32" (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 [2021-02-19 18:01:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 18:01:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 18:01:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 18:01:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-19 18:01:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 18:01:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 18:01:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 18:01:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 18:01:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 18:01:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-19 18:01:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-19 18:01:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 18:01:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 18:01:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 18:01:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 18:01:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 18:01:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 18:01:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 18:01:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 18:01:33,182 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 18:01:33,182 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 18:01:33,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:01:33 BoogieIcfgContainer [2021-02-19 18:01:33,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 18:01:33,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 18:01:33,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 18:01:33,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 18:01:33,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 06:01:32" (1/3) ... [2021-02-19 18:01:33,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44597fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:01:33, skipping insertion in model container [2021-02-19 18:01:33,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:01:32" (2/3) ... [2021-02-19 18:01:33,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44597fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:01:33, skipping insertion in model container [2021-02-19 18:01:33,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:01:33" (3/3) ... [2021-02-19 18:01:33,210 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2021-02-19 18:01:33,225 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 18:01:33,233 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 18:01:33,255 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 18:01:33,318 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 18:01:33,318 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 18:01:33,319 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 18:01:33,319 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 18:01:33,320 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 18:01:33,320 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 18:01:33,320 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 18:01:33,320 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 18:01:33,344 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-02-19 18:01:33,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-02-19 18:01:33,351 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:01:33,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:01:33,353 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:01:33,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:01:33,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1488249160, now seen corresponding path program 1 times [2021-02-19 18:01:33,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:01:33,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025247977] [2021-02-19 18:01:33,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:01:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:01:33,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:33,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:33,663 WARN L141 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-02-19 18:01:33,667 WARN L147 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size 25 [2021-02-19 18:01:33,726 WARN L141 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-02-19 18:01:33,729 WARN L147 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size 21 [2021-02-19 18:01:33,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:33,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:01:33,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:33,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:33,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:01:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:01:33,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:33,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:01:33,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025247977] [2021-02-19 18:01:33,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:01:33,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 18:01:33,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19267360] [2021-02-19 18:01:33,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:01:33,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:01:33,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:01:33,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:01:33,864 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2021-02-19 18:01:34,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:01:34,254 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2021-02-19 18:01:34,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 18:01:34,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2021-02-19 18:01:34,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:01:34,265 INFO L225 Difference]: With dead ends: 32 [2021-02-19 18:01:34,265 INFO L226 Difference]: Without dead ends: 14 [2021-02-19 18:01:34,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:01:34,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-02-19 18:01:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-02-19 18:01:34,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-02-19 18:01:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-02-19 18:01:34,305 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-02-19 18:01:34,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:01:34,305 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-02-19 18:01:34,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 18:01:34,306 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-02-19 18:01:34,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-02-19 18:01:34,306 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:01:34,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:01:34,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 18:01:34,307 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:01:34,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:01:34,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1110855594, now seen corresponding path program 1 times [2021-02-19 18:01:34,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:01:34,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126957417] [2021-02-19 18:01:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:01:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:01:34,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-19 18:01:34,382 WARN L141 QuantifierPusher]: treesize reduction 6, result has 80.6 percent of original size [2021-02-19 18:01:34,386 WARN L147 QuantifierPusher]: treesize reduction 6, result has 80.6 percent of original size 25 [2021-02-19 18:01:34,413 WARN L141 QuantifierPusher]: treesize reduction 6, result has 77.8 percent of original size [2021-02-19 18:01:34,418 WARN L147 QuantifierPusher]: treesize reduction 6, result has 77.8 percent of original size 21 [2021-02-19 18:01:34,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:01:34,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:01:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:01:34,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:01:34,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126957417] [2021-02-19 18:01:34,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767496562] [2021-02-19 18:01:34,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:01:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:01:34,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 19 conjunts are in the unsatisfiable core [2021-02-19 18:01:34,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:01:34,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:01:34,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:01:34,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:01:34,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:01:34,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-19 18:01:34,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-19 18:01:34,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-19 18:01:34,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-19 18:01:34,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-19 18:01:34,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-19 18:01:34,752 WARN L141 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-02-19 18:01:34,753 WARN L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-02-19 18:01:34,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 18:01:34,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-19 18:01:34,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-19 18:01:34,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:01:34,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:01:34,791 WARN L141 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-02-19 18:01:34,792 WARN L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-02-19 18:01:34,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:01:34,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:01:34,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:01:34,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:01:34,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-02-19 18:01:34,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138411157] [2021-02-19 18:01:34,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-19 18:01:34,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:01:34,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-19 18:01:34,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-02-19 18:01:34,800 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 11 states. [2021-02-19 18:01:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:01:35,230 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-02-19 18:01:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 18:01:35,231 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2021-02-19 18:01:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:01:35,231 INFO L225 Difference]: With dead ends: 17 [2021-02-19 18:01:35,231 INFO L226 Difference]: Without dead ends: 0 [2021-02-19 18:01:35,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-02-19 18:01:35,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-19 18:01:35,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-19 18:01:35,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-19 18:01:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-19 18:01:35,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-02-19 18:01:35,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:01:35,235 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-19 18:01:35,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-19 18:01:35,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-19 18:01:35,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-19 18:01:35,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-02-19 18:01:35,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-19 18:01:35,636 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-02-19 18:01:35,636 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-02-19 18:01:35,636 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-02-19 18:01:35,636 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-19 18:01:35,637 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|)) [2021-02-19 18:01:35,637 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-19 18:01:35,637 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-19 18:01:35,638 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-19 18:01:35,639 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-19 18:01:35,642 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-19 18:01:35,643 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2021-02-19 18:01:35,643 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-02-19 18:01:35,644 INFO L189 CegarLoopUtils]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2021-02-19 18:01:35,644 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2021-02-19 18:01:35,644 INFO L189 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 53) no Hoare annotation was computed. [2021-02-19 18:01:35,645 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 13 70) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2021-02-19 18:01:35,650 INFO L189 CegarLoopUtils]: For program point L25(lines 25 68) no Hoare annotation was computed. [2021-02-19 18:01:35,650 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 13 70) no Hoare annotation was computed. [2021-02-19 18:01:35,650 INFO L189 CegarLoopUtils]: For program point L53(line 53) no Hoare annotation was computed. [2021-02-19 18:01:35,650 INFO L189 CegarLoopUtils]: For program point L19(lines 19 69) no Hoare annotation was computed. [2021-02-19 18:01:35,650 INFO L189 CegarLoopUtils]: For program point L51(lines 51 60) no Hoare annotation was computed. [2021-02-19 18:01:35,650 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 13 70) no Hoare annotation was computed. [2021-02-19 18:01:35,650 INFO L189 CegarLoopUtils]: For program point L44(lines 44 66) no Hoare annotation was computed. [2021-02-19 18:01:35,651 INFO L185 CegarLoopUtils]: At program point L40(lines 30 68) the Hoare annotation is: (let ((.cse1 (+ main_~main__i~0 main_~main__y~0)) (.cse0 (+ main_~main__j~0 main_~main__x~0))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-02-19 18:01:35,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 06:01:35 BoogieIcfgContainer [2021-02-19 18:01:35,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 18:01:35,681 INFO L168 Benchmark]: Toolchain (without parser) took 3404.28 ms. Allocated memory was 162.5 MB in the beginning and 208.7 MB in the end (delta: 46.1 MB). Free memory was 138.5 MB in the beginning and 189.8 MB in the end (delta: -51.3 MB). Peak memory consumption was 113.4 MB. Max. memory is 8.0 GB. [2021-02-19 18:01:35,685 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 162.5 MB. Free memory is still 134.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 18:01:35,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.14 ms. Allocated memory is still 162.5 MB. Free memory was 137.3 MB in the beginning and 127.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-19 18:01:35,691 INFO L168 Benchmark]: Boogie Preprocessor took 33.64 ms. Allocated memory is still 162.5 MB. Free memory was 127.6 MB in the beginning and 126.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-19 18:01:35,691 INFO L168 Benchmark]: RCFGBuilder took 538.79 ms. Allocated memory is still 162.5 MB. Free memory was 126.2 MB in the beginning and 112.4 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-19 18:01:35,696 INFO L168 Benchmark]: TraceAbstraction took 2483.35 ms. Allocated memory was 162.5 MB in the beginning and 208.7 MB in the end (delta: 46.1 MB). Free memory was 111.9 MB in the beginning and 189.8 MB in the end (delta: -77.9 MB). Peak memory consumption was 86.1 MB. Max. memory is 8.0 GB. [2021-02-19 18:01:35,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 162.5 MB. Free memory is still 134.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 326.14 ms. Allocated memory is still 162.5 MB. Free memory was 137.3 MB in the beginning and 127.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.64 ms. Allocated memory is still 162.5 MB. Free memory was 127.6 MB in the beginning and 126.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 538.79 ms. Allocated memory is still 162.5 MB. Free memory was 126.2 MB in the beginning and 112.4 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2483.35 ms. Allocated memory was 162.5 MB in the beginning and 208.7 MB in the end (delta: 46.1 MB). Free memory was 111.9 MB in the beginning and 189.8 MB in the end (delta: -77.9 MB). Peak memory consumption was 86.1 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__j + main__x <= main__i + main__y) && main__i + main__y <= main__j + main__x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 42 SDslu, 52 SDs, 0 SdLazy, 92 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 60 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 186 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 2846 SizeOfPredicates, 5 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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...