/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-fpi/condaf.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:15:33,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:15:33,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:15:33,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:15:33,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 00:15:33,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 00:15:33,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 00:15:33,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 00:15:33,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 00:15:33,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 00:15:33,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 00:15:33,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 00:15:33,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 00:15:33,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 00:15:33,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 00:15:33,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 00:15:33,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 00:15:33,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:15:33,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:15:33,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:15:33,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:15:33,383 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:15:33,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:15:33,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:15:33,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:15:33,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:15:33,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:15:33,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:15:33,386 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:15:33,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:15:33,387 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:15:33,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:15:33,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:15:33,388 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:15:33,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:15:33,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:15:33,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:15:33,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:15:33,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:15:33,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:15:33,390 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:15:33,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:15:33,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:15:33,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:15:33,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:15:33,851 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:15:33,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condaf.c [2021-02-24 00:15:33,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4586a5ea8/5363531c1d054f1d9aa065108b874646/FLAGaa9234ded [2021-02-24 00:15:34,554 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:15:34,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condaf.c [2021-02-24 00:15:34,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4586a5ea8/5363531c1d054f1d9aa065108b874646/FLAGaa9234ded [2021-02-24 00:15:34,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4586a5ea8/5363531c1d054f1d9aa065108b874646 [2021-02-24 00:15:34,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:15:34,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:15:34,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:15:34,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:15:34,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:15:34,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:15:34" (1/1) ... [2021-02-24 00:15:34,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e78fa2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:34, skipping insertion in model container [2021-02-24 00:15:34,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:15:34" (1/1) ... [2021-02-24 00:15:34,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:15:34,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:15:35,228 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condaf.c[589,602] [2021-02-24 00:15:35,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:15:35,271 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:15:35,291 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condaf.c[589,602] [2021-02-24 00:15:35,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:15:35,338 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:15:35,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:35 WrapperNode [2021-02-24 00:15:35,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:15:35,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:15:35,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:15:35,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:15:35,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:35" (1/1) ... [2021-02-24 00:15:35,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:35" (1/1) ... [2021-02-24 00:15:35,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:35" (1/1) ... [2021-02-24 00:15:35,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:35" (1/1) ... [2021-02-24 00:15:35,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:35" (1/1) ... [2021-02-24 00:15:35,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:35" (1/1) ... [2021-02-24 00:15:35,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:35" (1/1) ... [2021-02-24 00:15:35,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:15:35,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:15:35,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:15:35,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:15:35,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:15:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:15:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:15:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:15:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 00:15:35,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 00:15:35,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:15:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:15:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:15:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:15:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:15:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 00:15:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:15:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 00:15:35,504 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 00:15:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:15:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 00:15:35,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:15:35,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:15:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:15:35,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:15:35,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:15:35,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:15:35,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:15:35,935 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-02-24 00:15:35,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:15:35 BoogieIcfgContainer [2021-02-24 00:15:35,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:15:35,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:15:35,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:15:35,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:15:35,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:15:34" (1/3) ... [2021-02-24 00:15:35,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61da6730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:15:35, skipping insertion in model container [2021-02-24 00:15:35,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:15:35" (2/3) ... [2021-02-24 00:15:35,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61da6730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:15:35, skipping insertion in model container [2021-02-24 00:15:35,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:15:35" (3/3) ... [2021-02-24 00:15:35,947 INFO L111 eAbstractionObserver]: Analyzing ICFG condaf.c [2021-02-24 00:15:35,954 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:15:35,960 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:15:35,979 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:15:36,000 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:15:36,000 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:15:36,001 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:15:36,001 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:15:36,001 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:15:36,001 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:15:36,001 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:15:36,001 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:15:36,018 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2021-02-24 00:15:36,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-02-24 00:15:36,029 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:15:36,030 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] [2021-02-24 00:15:36,030 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:15:36,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:15:36,037 INFO L82 PathProgramCache]: Analyzing trace with hash -276473570, now seen corresponding path program 1 times [2021-02-24 00:15:36,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:15:36,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801983735] [2021-02-24 00:15:36,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:15:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:15:36,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:36,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:36,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:36,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:36,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:15:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:15:36,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:36,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:36,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 00:15:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:15:36,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:36,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:36,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:15:36,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801983735] [2021-02-24 00:15:36,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:15:36,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 00:15:36,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109958279] [2021-02-24 00:15:36,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 00:15:36,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:15:36,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 00:15:36,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:15:36,466 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 3 states. [2021-02-24 00:15:36,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:15:36,696 INFO L93 Difference]: Finished difference Result 131 states and 148 transitions. [2021-02-24 00:15:36,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 00:15:36,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2021-02-24 00:15:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:15:36,707 INFO L225 Difference]: With dead ends: 131 [2021-02-24 00:15:36,707 INFO L226 Difference]: Without dead ends: 64 [2021-02-24 00:15:36,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:15:36,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-02-24 00:15:36,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-02-24 00:15:36,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-02-24 00:15:36,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2021-02-24 00:15:36,770 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 38 [2021-02-24 00:15:36,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:15:36,771 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2021-02-24 00:15:36,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 00:15:36,771 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2021-02-24 00:15:36,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-02-24 00:15:36,773 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:15:36,774 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] [2021-02-24 00:15:36,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:15:36,774 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:15:36,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:15:36,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1119969012, now seen corresponding path program 1 times [2021-02-24 00:15:36,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:15:36,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743239220] [2021-02-24 00:15:36,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:15:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:15:36,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:36,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:36,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:36,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:15:36,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:36,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:15:36,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:36,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:36,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:15:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:15:37,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:37,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:37,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 00:15:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:15:37,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:37,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:37,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:15:37,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743239220] [2021-02-24 00:15:37,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:15:37,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 00:15:37,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334832401] [2021-02-24 00:15:37,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:15:37,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:15:37,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:15:37,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:15:37,054 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 5 states. [2021-02-24 00:15:37,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:15:37,313 INFO L93 Difference]: Finished difference Result 120 states and 129 transitions. [2021-02-24 00:15:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 00:15:37,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2021-02-24 00:15:37,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:15:37,315 INFO L225 Difference]: With dead ends: 120 [2021-02-24 00:15:37,315 INFO L226 Difference]: Without dead ends: 89 [2021-02-24 00:15:37,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:15:37,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-02-24 00:15:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 67. [2021-02-24 00:15:37,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2021-02-24 00:15:37,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2021-02-24 00:15:37,333 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 38 [2021-02-24 00:15:37,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:15:37,334 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2021-02-24 00:15:37,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:15:37,334 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2021-02-24 00:15:37,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-24 00:15:37,336 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:15:37,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:15:37,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:15:37,337 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:15:37,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:15:37,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1778519661, now seen corresponding path program 1 times [2021-02-24 00:15:37,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:15:37,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390229309] [2021-02-24 00:15:37,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:15:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:15:37,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:37,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:37,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:37,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:15:37,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:37,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 00:15:37,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:37,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 00:15:37,629 WARN L141 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-02-24 00:15:37,630 WARN L147 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size 14 [2021-02-24 00:15:37,650 WARN L141 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-02-24 00:15:37,652 WARN L147 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size 36 [2021-02-24 00:15:37,682 WARN L141 QuantifierPusher]: treesize reduction 9, result has 72.7 percent of original size [2021-02-24 00:15:37,685 WARN L147 QuantifierPusher]: treesize reduction 9, result has 72.7 percent of original size 24 [2021-02-24 00:15:37,706 WARN L141 QuantifierPusher]: treesize reduction 9, result has 71.0 percent of original size [2021-02-24 00:15:37,707 WARN L147 QuantifierPusher]: treesize reduction 9, result has 71.0 percent of original size 22 [2021-02-24 00:15:37,727 WARN L141 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-02-24 00:15:37,728 WARN L147 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size 15 [2021-02-24 00:15:37,745 WARN L141 QuantifierPusher]: treesize reduction 32, result has 49.2 percent of original size [2021-02-24 00:15:37,746 WARN L147 QuantifierPusher]: treesize reduction 32, result has 49.2 percent of original size 31 [2021-02-24 00:15:37,777 WARN L141 QuantifierPusher]: treesize reduction 32, result has 41.8 percent of original size [2021-02-24 00:15:37,779 WARN L147 QuantifierPusher]: treesize reduction 32, result has 41.8 percent of original size 23 [2021-02-24 00:15:37,806 WARN L141 QuantifierPusher]: treesize reduction 25, result has 41.9 percent of original size [2021-02-24 00:15:37,808 WARN L147 QuantifierPusher]: treesize reduction 25, result has 41.9 percent of original size 18 [2021-02-24 00:15:37,811 WARN L141 QuantifierPusher]: treesize reduction 15, result has 6.3 percent of original size [2021-02-24 00:15:37,811 WARN L147 QuantifierPusher]: treesize reduction 15, result has 6.3 percent of original size 1 [2021-02-24 00:15:37,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:37,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:37,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:15:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:15:37,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:37,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:37,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 00:15:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:15:37,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:15:37,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:15:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-24 00:15:37,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390229309] [2021-02-24 00:15:37,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:15:37,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-24 00:15:37,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232082441] [2021-02-24 00:15:37,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:15:37,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:15:37,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:15:37,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:15:37,872 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 12 states. [2021-02-24 00:15:38,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:15:38,291 INFO L93 Difference]: Finished difference Result 132 states and 140 transitions. [2021-02-24 00:15:38,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 00:15:38,292 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 62 [2021-02-24 00:15:38,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:15:38,293 INFO L225 Difference]: With dead ends: 132 [2021-02-24 00:15:38,293 INFO L226 Difference]: Without dead ends: 101 [2021-02-24 00:15:38,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2021-02-24 00:15:38,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-02-24 00:15:38,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 76. [2021-02-24 00:15:38,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-02-24 00:15:38,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2021-02-24 00:15:38,310 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 62 [2021-02-24 00:15:38,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:15:38,311 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2021-02-24 00:15:38,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:15:38,311 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2021-02-24 00:15:38,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-24 00:15:38,313 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:15:38,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:15:38,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:15:38,314 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:15:38,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:15:38,315 INFO L82 PathProgramCache]: Analyzing trace with hash -955592423, now seen corresponding path program 1 times [2021-02-24 00:15:38,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:15:38,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636012376] [2021-02-24 00:15:38,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:15:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 00:15:38,348 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 00:15:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 00:15:38,374 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 00:15:38,407 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 00:15:38,408 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 00:15:38,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 00:15:38,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:15:38 BoogieIcfgContainer [2021-02-24 00:15:38,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:15:38,500 INFO L168 Benchmark]: Toolchain (without parser) took 3558.70 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.7 MB in the beginning and 100.7 MB in the end (delta: 27.0 MB). Peak memory consumption was 58.2 MB. Max. memory is 8.0 GB. [2021-02-24 00:15:38,500 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:15:38,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.22 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 116.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-24 00:15:38,503 INFO L168 Benchmark]: Boogie Preprocessor took 42.60 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 00:15:38,506 INFO L168 Benchmark]: RCFGBuilder took 554.27 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 127.5 MB in the end (delta: -12.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. [2021-02-24 00:15:38,507 INFO L168 Benchmark]: TraceAbstraction took 2558.21 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.0 MB in the beginning and 100.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 56.3 MB. Max. memory is 8.0 GB. [2021-02-24 00:15:38,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 377.22 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 116.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.60 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 554.27 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 127.5 MB in the end (delta: -12.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2558.21 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.0 MB in the beginning and 100.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 56.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [\old(N)=51, N=0] [L23] N = __VERIFIER_nondet_int() VAL [\old(N)=0, __VERIFIER_nondet_int()=1, N=1] [L24] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L27] int i; VAL [\old(N)=0, N=1] [L28] int sum[1]; VAL [\old(N)=0, N=1, sum={3:0}] [L29] int *a = malloc(sizeof(int)*N); VAL [\old(N)=0, a={-2:0}, malloc(sizeof(int)*N)={-2:0}, N=1, sum={3:0}] [L31] sum[0] = 0 VAL [\old(N)=0, a={-2:0}, malloc(sizeof(int)*N)={-2:0}, N=1, sum={3:0}] [L32] i=0 VAL [\old(N)=0, a={-2:0}, i=0, malloc(sizeof(int)*N)={-2:0}, N=1, sum={3:0}] [L32] COND TRUE i