/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 NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/condaf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:36:40,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:36:40,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:36:40,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:36:40,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:36:40,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:36:40,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:36:40,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:36:40,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:36:40,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:36:40,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:36:40,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:36:40,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:36:40,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:36:40,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:36:40,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:36:40,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:36:40,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:36:40,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:36:40,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:36:40,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:36:40,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:36:40,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:36:40,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:36:40,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:36:40,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:36:40,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:36:40,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:36:40,329 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 [2020-07-20 17:36:40,360 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:36:40,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:36:40,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:36:40,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:36:40,364 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:36:40,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:36:40,364 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:36:40,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:36:40,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:36:40,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:36:40,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:36:40,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:36:40,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:36:40,366 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:36:40,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:36:40,366 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:36:40,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:36:40,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:36:40,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:36:40,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:36:40,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:36:40,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:36:40,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:36:40,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:36:40,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:36:40,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:36:40,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:36:40,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:36:40,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:36:40,369 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 -> NUM_VARIABLES 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 -> 4 [2020-07-20 17:36:40,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:36:40,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:36:40,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:36:40,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:36:40,772 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:36:40,773 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condaf.c [2020-07-20 17:36:40,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d3b97441/f7b59108f3cb4b6fbfc032d07528fd7c/FLAG7a452dc12 [2020-07-20 17:36:41,470 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:36:41,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condaf.c [2020-07-20 17:36:41,483 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d3b97441/f7b59108f3cb4b6fbfc032d07528fd7c/FLAG7a452dc12 [2020-07-20 17:36:41,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d3b97441/f7b59108f3cb4b6fbfc032d07528fd7c [2020-07-20 17:36:41,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:36:41,779 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:36:41,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:36:41,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:36:41,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:36:41,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:36:41" (1/1) ... [2020-07-20 17:36:41,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9789b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:41, skipping insertion in model container [2020-07-20 17:36:41,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:36:41" (1/1) ... [2020-07-20 17:36:41,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:36:41,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:36:42,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:36:42,027 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:36:42,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:36:42,074 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:36:42,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:42 WrapperNode [2020-07-20 17:36:42,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:36:42,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:36:42,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:36:42,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:36:42,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:42" (1/1) ... [2020-07-20 17:36:42,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:42" (1/1) ... [2020-07-20 17:36:42,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:42" (1/1) ... [2020-07-20 17:36:42,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:42" (1/1) ... [2020-07-20 17:36:42,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:42" (1/1) ... [2020-07-20 17:36:42,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:42" (1/1) ... [2020-07-20 17:36:42,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:42" (1/1) ... [2020-07-20 17:36:42,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:36:42,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:36:42,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:36:42,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:36:42,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:42" (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 [2020-07-20 17:36:42,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:36:42,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:36:42,303 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 17:36:42,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 17:36:42,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:36:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:36:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 17:36:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 17:36:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 17:36:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:36:42,305 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 17:36:42,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:36:42,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 17:36:42,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 17:36:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 17:36:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 17:36:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 17:36:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:36:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:36:42,654 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:36:42,654 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-20 17:36:42,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:36:42 BoogieIcfgContainer [2020-07-20 17:36:42,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:36:42,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:36:42,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:36:42,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:36:42,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:36:41" (1/3) ... [2020-07-20 17:36:42,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f2ae28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:36:42, skipping insertion in model container [2020-07-20 17:36:42,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:36:42" (2/3) ... [2020-07-20 17:36:42,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f2ae28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:36:42, skipping insertion in model container [2020-07-20 17:36:42,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:36:42" (3/3) ... [2020-07-20 17:36:42,679 INFO L109 eAbstractionObserver]: Analyzing ICFG condaf.c [2020-07-20 17:36:42,701 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:36:42,713 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:36:42,732 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:36:42,770 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:36:42,771 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:36:42,771 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:36:42,771 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:36:42,771 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:36:42,771 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:36:42,771 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:36:42,772 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:36:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-07-20 17:36:42,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-20 17:36:42,808 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:36:42,809 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] [2020-07-20 17:36:42,810 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:36:42,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:36:42,818 INFO L82 PathProgramCache]: Analyzing trace with hash -88121349, now seen corresponding path program 1 times [2020-07-20 17:36:42,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:36:42,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803202092] [2020-07-20 17:36:42,831 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:36:42,976 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:36:42,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:36:42,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 17:36:42,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:36:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:36:43,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:36:43,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803202092] [2020-07-20 17:36:43,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:36:43,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 17:36:43,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678913540] [2020-07-20 17:36:43,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 17:36:43,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:36:43,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 17:36:43,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 17:36:43,053 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2020-07-20 17:36:43,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:36:43,083 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2020-07-20 17:36:43,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 17:36:43,085 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2020-07-20 17:36:43,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:36:43,098 INFO L225 Difference]: With dead ends: 60 [2020-07-20 17:36:43,098 INFO L226 Difference]: Without dead ends: 28 [2020-07-20 17:36:43,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 17:36:43,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-20 17:36:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-20 17:36:43,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-20 17:36:43,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-07-20 17:36:43,158 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 23 [2020-07-20 17:36:43,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:36:43,159 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-07-20 17:36:43,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 17:36:43,159 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-07-20 17:36:43,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-20 17:36:43,160 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:36:43,161 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] [2020-07-20 17:36:43,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:36:43,378 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:36:43,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:36:43,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1099238599, now seen corresponding path program 1 times [2020-07-20 17:36:43,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:36:43,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911236266] [2020-07-20 17:36:43,382 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:36:43,532 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 17:36:43,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:36:43,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 17:36:43,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:36:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:36:43,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:36:43,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911236266] [2020-07-20 17:36:43,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:36:43,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 17:36:43,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763123105] [2020-07-20 17:36:43,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 17:36:43,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:36:43,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 17:36:43,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 17:36:43,632 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 4 states. [2020-07-20 17:36:43,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:36:43,731 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2020-07-20 17:36:43,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 17:36:43,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-07-20 17:36:43,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:36:43,734 INFO L225 Difference]: With dead ends: 48 [2020-07-20 17:36:43,734 INFO L226 Difference]: Without dead ends: 35 [2020-07-20 17:36:43,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-20 17:36:43,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-20 17:36:43,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2020-07-20 17:36:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-07-20 17:36:43,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-07-20 17:36:43,747 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 23 [2020-07-20 17:36:43,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:36:43,748 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-07-20 17:36:43,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 17:36:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-07-20 17:36:43,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-20 17:36:43,749 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:36:43,750 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] [2020-07-20 17:36:43,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:36:43,965 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:36:43,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:36:43,966 INFO L82 PathProgramCache]: Analyzing trace with hash 188437731, now seen corresponding path program 1 times [2020-07-20 17:36:43,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:36:43,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967110970] [2020-07-20 17:36:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:36:44,046 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 17:36:44,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:36:44,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 17:36:44,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:36:44,136 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-07-20 17:36:44,137 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 17:36:44,153 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:36:44,154 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 17:36:44,155 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2020-07-20 17:36:44,245 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:36:44,246 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2020-07-20 17:36:44,250 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:36:44,254 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-20 17:36:44,271 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 17:36:44,275 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:36:44,278 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-20 17:36:44,280 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:34, output treesize:28 [2020-07-20 17:36:44,281 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:36:44,310 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:36:44,315 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 17:36:44,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 17:36:44,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:36:44,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 17:36:44,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967110970] [2020-07-20 17:36:44,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:36:44,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2020-07-20 17:36:44,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480101140] [2020-07-20 17:36:44,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 17:36:44,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:36:44,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 17:36:44,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-07-20 17:36:44,588 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 12 states. [2020-07-20 17:36:44,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:36:44,857 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2020-07-20 17:36:44,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 17:36:44,858 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-07-20 17:36:44,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:36:44,859 INFO L225 Difference]: With dead ends: 44 [2020-07-20 17:36:44,859 INFO L226 Difference]: Without dead ends: 34 [2020-07-20 17:36:44,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-07-20 17:36:44,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-20 17:36:44,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2020-07-20 17:36:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-20 17:36:44,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-07-20 17:36:44,868 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 30 [2020-07-20 17:36:44,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:36:44,869 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-07-20 17:36:44,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 17:36:44,869 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-07-20 17:36:44,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-20 17:36:44,870 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:36:44,871 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] [2020-07-20 17:36:45,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:36:45,086 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:36:45,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:36:45,087 INFO L82 PathProgramCache]: Analyzing trace with hash 446603169, now seen corresponding path program 1 times [2020-07-20 17:36:45,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:36:45,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569689700] [2020-07-20 17:36:45,089 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:36:45,167 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:36:45,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 17:36:45,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 17:36:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 17:36:45,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 17:36:45,268 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 17:36:45,269 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 17:36:45,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:36:45,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:36:45 BoogieIcfgContainer [2020-07-20 17:36:45,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:36:45,602 INFO L168 Benchmark]: Toolchain (without parser) took 3822.60 ms. Allocated memory was 144.7 MB in the beginning and 234.9 MB in the end (delta: 90.2 MB). Free memory was 101.7 MB in the beginning and 145.6 MB in the end (delta: -43.9 MB). Peak memory consumption was 46.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:36:45,605 INFO L168 Benchmark]: CDTParser took 1.21 ms. Allocated memory is still 144.7 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 17:36:45,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.65 ms. Allocated memory is still 144.7 MB. Free memory was 101.3 MB in the beginning and 90.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:36:45,610 INFO L168 Benchmark]: Boogie Preprocessor took 155.29 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 90.8 MB in the beginning and 180.4 MB in the end (delta: -89.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:36:45,612 INFO L168 Benchmark]: RCFGBuilder took 431.67 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 162.4 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:36:45,617 INFO L168 Benchmark]: TraceAbstraction took 2931.17 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 161.7 MB in the beginning and 145.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2020-07-20 17:36:45,627 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21 ms. Allocated memory is still 144.7 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.65 ms. Allocated memory is still 144.7 MB. Free memory was 101.3 MB in the beginning and 90.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.29 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 90.8 MB in the beginning and 180.4 MB in the end (delta: -89.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.67 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 162.4 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2931.17 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 161.7 MB in the beginning and 145.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=6, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] int sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 0 [L30] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1, sum={2:0}] [L30] COND TRUE i