/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:49:54,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:49:54,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:49:54,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:49:54,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:49:54,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:49:54,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:49:54,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:49:54,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:49:54,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:49:54,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:49:54,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:49:54,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:49:54,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:49:54,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:49:54,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:49:54,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:49:54,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:49:54,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:49:54,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:49:54,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:49:54,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:49:54,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:49:54,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:49:54,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:49:54,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:49:54,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:49:54,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:49:54,996 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 [2020-07-21 20:49:55,035 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:49:55,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:49:55,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:49:55,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:49:55,041 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:49:55,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:49:55,041 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:49:55,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:49:55,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:49:55,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:49:55,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:49:55,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:49:55,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:49:55,044 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:49:55,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:49:55,044 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:49:55,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:49:55,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:49:55,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:49:55,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:49:55,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:49:55,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:49:55,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:49:55,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:49:55,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:49:55,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:49:55,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:49:55,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:49:55,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:49:55,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:49:55,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:49:55,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:49:55,418 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:49:55,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:49:55,420 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:49:55,421 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-07-21 20:49:55,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e21928f4/1c03de12a4ba4450b2f1c26ef3b139c5/FLAGcd69f25bf [2020-07-21 20:49:55,976 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:49:55,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-07-21 20:49:55,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e21928f4/1c03de12a4ba4450b2f1c26ef3b139c5/FLAGcd69f25bf [2020-07-21 20:49:56,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e21928f4/1c03de12a4ba4450b2f1c26ef3b139c5 [2020-07-21 20:49:56,307 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:49:56,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:49:56,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:49:56,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:49:56,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:49:56,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:49:56" (1/1) ... [2020-07-21 20:49:56,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118b3e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56, skipping insertion in model container [2020-07-21 20:49:56,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:49:56" (1/1) ... [2020-07-21 20:49:56,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:49:56,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:49:56,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:49:56,650 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:49:56,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:49:56,681 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:49:56,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56 WrapperNode [2020-07-21 20:49:56,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:49:56,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:49:56,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:49:56,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:49:56,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56" (1/1) ... [2020-07-21 20:49:56,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56" (1/1) ... [2020-07-21 20:49:56,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56" (1/1) ... [2020-07-21 20:49:56,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56" (1/1) ... [2020-07-21 20:49:56,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56" (1/1) ... [2020-07-21 20:49:56,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56" (1/1) ... [2020-07-21 20:49:56,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56" (1/1) ... [2020-07-21 20:49:56,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:49:56,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:49:56,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:49:56,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:49:56,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56" (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 [2020-07-21 20:49:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:49:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:49:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-21 20:49:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 20:49:56,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:49:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:49:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 20:49:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-21 20:49:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 20:49:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:49:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:49:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:49:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:49:57,103 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:49:57,104 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:49:57,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:49:57 BoogieIcfgContainer [2020-07-21 20:49:57,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:49:57,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:49:57,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:49:57,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:49:57,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:49:56" (1/3) ... [2020-07-21 20:49:57,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594b2d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:49:57, skipping insertion in model container [2020-07-21 20:49:57,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:56" (2/3) ... [2020-07-21 20:49:57,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594b2d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:49:57, skipping insertion in model container [2020-07-21 20:49:57,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:49:57" (3/3) ... [2020-07-21 20:49:57,118 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt2.c [2020-07-21 20:49:57,130 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:49:57,139 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:49:57,155 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:49:57,180 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:49:57,180 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:49:57,181 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:49:57,181 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:49:57,181 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:49:57,181 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:49:57,181 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:49:57,181 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:49:57,201 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-21 20:49:57,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-21 20:49:57,208 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:49:57,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:49:57,210 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:49:57,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:49:57,215 INFO L82 PathProgramCache]: Analyzing trace with hash -647006370, now seen corresponding path program 1 times [2020-07-21 20:49:57,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:49:57,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672942436] [2020-07-21 20:49:57,225 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:49:57,306 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:49:57,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:49:57,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 20:49:57,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:49:57,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:49:57,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:49:57,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672942436] [2020-07-21 20:49:57,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:49:57,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:49:57,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515535756] [2020-07-21 20:49:57,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:49:57,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:49:57,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:49:57,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:49:57,469 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2020-07-21 20:49:57,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:49:57,647 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2020-07-21 20:49:57,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 20:49:57,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-21 20:49:57,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:49:57,660 INFO L225 Difference]: With dead ends: 47 [2020-07-21 20:49:57,661 INFO L226 Difference]: Without dead ends: 17 [2020-07-21 20:49:57,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:49:57,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-07-21 20:49:57,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-21 20:49:57,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-21 20:49:57,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-07-21 20:49:57,710 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2020-07-21 20:49:57,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:49:57,711 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-07-21 20:49:57,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:49:57,711 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-07-21 20:49:57,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-21 20:49:57,712 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:49:57,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:49:57,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:49:57,928 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:49:57,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:49:57,929 INFO L82 PathProgramCache]: Analyzing trace with hash 523159493, now seen corresponding path program 1 times [2020-07-21 20:49:57,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:49:57,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626953631] [2020-07-21 20:49:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:49:57,981 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:49:57,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:49:57,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 20:49:57,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:49:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:49:58,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:49:58,293 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:50:00,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:50:00,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626953631] [2020-07-21 20:50:00,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:50:00,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2020-07-21 20:50:00,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694194762] [2020-07-21 20:50:00,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-21 20:50:00,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:50:00,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-21 20:50:00,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=133, Unknown=1, NotChecked=0, Total=182 [2020-07-21 20:50:00,677 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 14 states. [2020-07-21 20:50:05,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:50:05,126 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-07-21 20:50:05,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 20:50:05,127 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-07-21 20:50:05,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:50:05,128 INFO L225 Difference]: With dead ends: 34 [2020-07-21 20:50:05,128 INFO L226 Difference]: Without dead ends: 22 [2020-07-21 20:50:05,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=52, Invalid=157, Unknown=1, NotChecked=0, Total=210 [2020-07-21 20:50:05,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-07-21 20:50:05,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-07-21 20:50:05,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-21 20:50:05,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-07-21 20:50:05,136 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2020-07-21 20:50:05,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:50:05,137 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-07-21 20:50:05,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-21 20:50:05,137 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-07-21 20:50:05,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-21 20:50:05,138 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:50:05,138 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:50:05,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:50:05,345 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:50:05,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:50:05,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1817505603, now seen corresponding path program 1 times [2020-07-21 20:50:05,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:50:05,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586295630] [2020-07-21 20:50:05,347 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:50:05,386 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:50:05,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:50:05,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-21 20:50:05,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:50:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:50:05,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:50:05,579 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 20:50:06,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 20:50:06,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586295630] [2020-07-21 20:50:06,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 20:50:06,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2020-07-21 20:50:06,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877811915] [2020-07-21 20:50:06,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:50:06,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:50:06,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:50:06,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-07-21 20:50:06,712 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 6 states. [2020-07-21 20:50:06,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:50:06,777 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-07-21 20:50:06,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:50:06,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-07-21 20:50:06,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:50:06,779 INFO L225 Difference]: With dead ends: 22 [2020-07-21 20:50:06,779 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:50:06,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 7 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-07-21 20:50:06,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:50:06,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:50:06,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:50:06,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:50:06,781 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-07-21 20:50:06,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:50:06,781 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:50:06,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:50:06,781 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:50:06,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:50:06,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:50:06,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:50:07,098 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:50:07,098 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:50:07,098 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:50:07,099 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:50:07,099 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 20:50:07,099 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:50:07,099 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:50:07,099 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-21 20:50:07,099 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-21 20:50:07,099 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-21 20:50:07,100 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-21 20:50:07,100 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 31) the Hoare annotation is: true [2020-07-21 20:50:07,100 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-07-21 20:50:07,100 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 31) no Hoare annotation was computed. [2020-07-21 20:50:07,100 INFO L268 CegarLoopResult]: For program point L23(lines 23 26) no Hoare annotation was computed. [2020-07-21 20:50:07,100 INFO L268 CegarLoopResult]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2020-07-21 20:50:07,100 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 28) the Hoare annotation is: (= (mod (+ main_~j~0 main_~i~0) 4294967296) (mod main_~l~0 4294967296)) [2020-07-21 20:50:07,100 INFO L264 CegarLoopResult]: At program point L21-3(lines 21 28) the Hoare annotation is: (= (mod (+ main_~j~0 main_~i~0) 4294967296) (mod main_~l~0 4294967296)) [2020-07-21 20:50:07,101 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-07-21 20:50:07,101 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 31) no Hoare annotation was computed. [2020-07-21 20:50:07,101 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-21 20:50:07,101 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-07-21 20:50:07,101 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-21 20:50:07,101 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-21 20:50:07,101 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-07-21 20:50:07,102 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-21 20:50:07,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:50:07 BoogieIcfgContainer [2020-07-21 20:50:07,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:50:07,124 INFO L168 Benchmark]: Toolchain (without parser) took 10814.37 ms. Allocated memory was 138.4 MB in the beginning and 234.4 MB in the end (delta: 95.9 MB). Free memory was 103.0 MB in the beginning and 143.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 55.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:50:07,125 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 20:50:07,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.20 ms. Allocated memory is still 138.4 MB. Free memory was 102.5 MB in the beginning and 92.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:50:07,127 INFO L168 Benchmark]: Boogie Preprocessor took 122.24 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 92.9 MB in the beginning and 180.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:50:07,128 INFO L168 Benchmark]: RCFGBuilder took 303.18 ms. Allocated memory is still 200.8 MB. Free memory was 179.7 MB in the beginning and 166.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:50:07,129 INFO L168 Benchmark]: TraceAbstraction took 10010.75 ms. Allocated memory was 200.8 MB in the beginning and 234.4 MB in the end (delta: 33.6 MB). Free memory was 166.3 MB in the beginning and 143.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:50:07,133 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 371.20 ms. Allocated memory is still 138.4 MB. Free memory was 102.5 MB in the beginning and 92.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.24 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 92.9 MB in the beginning and 180.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 303.18 ms. Allocated memory is still 200.8 MB. Free memory was 179.7 MB in the beginning and 166.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10010.75 ms. Allocated memory was 200.8 MB in the beginning and 234.4 MB in the end (delta: 33.6 MB). Free memory was 166.3 MB in the beginning and 143.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (j + i) % 4294967296 == l % 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.8s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 21 SDslu, 142 SDs, 0 SdLazy, 122 SolverSat, 11 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 46 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 20 NumberOfFragments, 23 HoareAnnotationTreeSize, 12 FomulaSimplifications, 75 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 1 QuantifiedInterpolants, 7969 SizeOfPredicates, 8 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 12/26 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...