/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:23:49,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:23:49,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:23:49,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:23:49,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:23:49,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:23:49,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:23:49,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:23:49,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:23:49,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:23:49,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:23:49,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:23:49,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:23:49,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:23:49,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:23:49,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:23:49,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:23:49,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:23:49,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:23:49,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:23:49,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:23:49,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:23:49,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:23:49,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:23:49,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:23:49,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 13:23:49,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 13:23:49,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 13:23:49,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 13:23:49,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 13:23:49,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 13:23:49,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 13:23:49,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 13:23:49,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:23:49,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:23:49,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:23:49,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:23:49,626 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:23:49,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:23:49,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:23:49,628 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:23:49,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:23:49,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:23:49,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:23:49,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:23:49,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:23:49,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:23:49,631 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:23:49,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:23:49,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:23:49,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:23:49,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:23:49,632 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:23:49,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:23:49,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:23:49,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:23:49,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:23:49,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:23:49,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:23:49,638 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:23:49,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:23:49,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:23:49,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:23:49,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:23:49,897 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:23:49,898 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.c_1.i [2020-07-07 13:23:49,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e30e944/f77318dbc8c449dca803c2803cd61d6f/FLAG4cd05b9e5 [2020-07-07 13:23:50,497 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:23:50,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast.c_1.i [2020-07-07 13:23:50,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e30e944/f77318dbc8c449dca803c2803cd61d6f/FLAG4cd05b9e5 [2020-07-07 13:23:50,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e30e944/f77318dbc8c449dca803c2803cd61d6f [2020-07-07 13:23:50,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:23:50,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:23:50,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:23:50,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:23:50,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:23:50,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:23:50" (1/1) ... [2020-07-07 13:23:50,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d24091b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:50, skipping insertion in model container [2020-07-07 13:23:50,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:23:50" (1/1) ... [2020-07-07 13:23:50,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:23:50,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:23:51,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:23:51,062 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:23:51,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:23:51,107 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:23:51,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:51 WrapperNode [2020-07-07 13:23:51,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:23:51,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:23:51,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:23:51,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:23:51,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:51" (1/1) ... [2020-07-07 13:23:51,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:51" (1/1) ... [2020-07-07 13:23:51,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:51" (1/1) ... [2020-07-07 13:23:51,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:51" (1/1) ... [2020-07-07 13:23:51,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:51" (1/1) ... [2020-07-07 13:23:51,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:51" (1/1) ... [2020-07-07 13:23:51,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:51" (1/1) ... [2020-07-07 13:23:51,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:23:51,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:23:51,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:23:51,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:23:51,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:51" (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 [2020-07-07 13:23:51,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:23:51,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:23:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-07 13:23:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-07-07 13:23:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-07-07 13:23:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-07-07 13:23:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-07-07 13:23:51,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-07-07 13:23:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-07-07 13:23:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:23:51,303 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-07-07 13:23:51,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:23:51,303 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-07 13:23:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-07 13:23:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-07-07 13:23:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 13:23:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-07-07 13:23:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-07-07 13:23:51,304 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-07-07 13:23:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:23:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-07-07 13:23:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-07-07 13:23:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-07-07 13:23:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:23:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 13:23:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 13:23:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:23:51,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:23:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:23:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:23:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:23:51,741 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:23:51,741 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 13:23:51,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:23:51 BoogieIcfgContainer [2020-07-07 13:23:51,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:23:51,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:23:51,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:23:51,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:23:51,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:23:50" (1/3) ... [2020-07-07 13:23:51,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455feb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:23:51, skipping insertion in model container [2020-07-07 13:23:51,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:23:51" (2/3) ... [2020-07-07 13:23:51,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455feb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:23:51, skipping insertion in model container [2020-07-07 13:23:51,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:23:51" (3/3) ... [2020-07-07 13:23:51,754 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast.c_1.i [2020-07-07 13:23:51,761 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:23:51,767 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:23:51,780 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:23:51,797 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:23:51,797 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:23:51,797 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:23:51,797 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:23:51,797 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:23:51,797 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:23:51,798 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:23:51,798 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:23:51,813 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-07-07 13:23:51,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-07 13:23:51,823 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:51,824 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] [2020-07-07 13:23:51,825 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:51,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:51,830 INFO L82 PathProgramCache]: Analyzing trace with hash 991863416, now seen corresponding path program 1 times [2020-07-07 13:23:51,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:51,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971677809] [2020-07-07 13:23:51,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:23:52,348 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:23:52,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971677809] [2020-07-07 13:23:52,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:23:52,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 13:23:52,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467162443] [2020-07-07 13:23:52,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 13:23:52,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:23:52,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 13:23:52,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-07 13:23:52,377 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 10 states. [2020-07-07 13:23:52,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:23:52,969 INFO L93 Difference]: Finished difference Result 119 states and 132 transitions. [2020-07-07 13:23:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 13:23:52,971 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-07-07 13:23:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:23:52,982 INFO L225 Difference]: With dead ends: 119 [2020-07-07 13:23:52,982 INFO L226 Difference]: Without dead ends: 98 [2020-07-07 13:23:52,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-07-07 13:23:53,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-07-07 13:23:53,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-07-07 13:23:53,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-07-07 13:23:53,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2020-07-07 13:23:53,046 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 38 [2020-07-07 13:23:53,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:23:53,047 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2020-07-07 13:23:53,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 13:23:53,048 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2020-07-07 13:23:53,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-07 13:23:53,051 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:53,051 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:23:53,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:23:53,052 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:53,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:53,052 INFO L82 PathProgramCache]: Analyzing trace with hash -630533651, now seen corresponding path program 1 times [2020-07-07 13:23:53,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:53,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104820958] [2020-07-07 13:23:53,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:23:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-07 13:23:53,369 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:23:53,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104820958] [2020-07-07 13:23:53,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:23:53,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 13:23:53,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251569355] [2020-07-07 13:23:53,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 13:23:53,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:23:53,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 13:23:53,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-07 13:23:53,373 INFO L87 Difference]: Start difference. First operand 96 states and 103 transitions. Second operand 10 states. [2020-07-07 13:23:54,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:23:54,155 INFO L93 Difference]: Finished difference Result 118 states and 124 transitions. [2020-07-07 13:23:54,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-07 13:23:54,157 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2020-07-07 13:23:54,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:23:54,161 INFO L225 Difference]: With dead ends: 118 [2020-07-07 13:23:54,161 INFO L226 Difference]: Without dead ends: 107 [2020-07-07 13:23:54,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2020-07-07 13:23:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-07 13:23:54,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2020-07-07 13:23:54,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-07-07 13:23:54,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 110 transitions. [2020-07-07 13:23:54,202 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 110 transitions. Word has length 53 [2020-07-07 13:23:54,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:23:54,203 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 110 transitions. [2020-07-07 13:23:54,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 13:23:54,203 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 110 transitions. [2020-07-07 13:23:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-07 13:23:54,207 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:23:54,207 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:23:54,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:23:54,208 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:23:54,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:23:54,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1439695258, now seen corresponding path program 1 times [2020-07-07 13:23:54,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:23:54,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597688770] [2020-07-07 13:23:54,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:23:54,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:23:54,232 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:442) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:277) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-07 13:23:54,241 INFO L168 Benchmark]: Toolchain (without parser) took 3449.00 ms. Allocated memory was 138.4 MB in the beginning and 246.9 MB in the end (delta: 108.5 MB). Free memory was 103.4 MB in the beginning and 166.7 MB in the end (delta: -63.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:23:54,242 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:23:54,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.58 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 91.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-07-07 13:23:54,245 INFO L168 Benchmark]: Boogie Preprocessor took 128.52 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.6 MB in the beginning and 179.8 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-07 13:23:54,245 INFO L168 Benchmark]: RCFGBuilder took 509.64 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 152.4 MB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-07-07 13:23:54,247 INFO L168 Benchmark]: TraceAbstraction took 2491.41 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 152.4 MB in the beginning and 166.7 MB in the end (delta: -14.4 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2020-07-07 13:23:54,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 314.58 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 91.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.52 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.6 MB in the beginning and 179.8 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 509.64 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 152.4 MB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2491.41 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 152.4 MB in the beginning and 166.7 MB in the end (delta: -14.4 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:442) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...