/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-MemCleanup-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 18:51:30,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 18:51:30,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 18:51:30,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 18:51:30,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 18:51:30,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 18:51:30,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 18:51:30,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 18:51:30,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 18:51:30,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 18:51:30,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 18:51:30,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 18:51:30,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 18:51:30,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 18:51:30,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 18:51:30,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 18:51:30,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 18:51:30,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 18:51:30,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 18:51:30,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 18:51:30,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 18:51:30,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 18:51:30,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 18:51:30,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 18:51:30,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 18:51:30,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 18:51:30,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 18:51:30,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 18:51:30,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 18:51:30,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 18:51:30,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 18:51:30,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 18:51:30,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 18:51:30,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 18:51:30,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 18:51:30,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 18:51:30,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-64bit-Automizer_Default.epf [2020-12-22 18:51:30,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 18:51:30,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 18:51:30,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 18:51:30,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 18:51:30,213 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 18:51:30,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 18:51:30,213 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-22 18:51:30,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 18:51:30,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 18:51:30,214 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-22 18:51:30,214 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-22 18:51:30,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 18:51:30,214 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-22 18:51:30,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 18:51:30,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 18:51:30,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 18:51:30,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 18:51:30,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 18:51:30,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 18:51:30,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 18:51:30,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 18:51:30,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 18:51:30,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 18:51:30,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 18:51:30,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 18:51:30,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 18:51:30,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 18:51:30,748 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 18:51:30,749 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 18:51:30,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2020-12-22 18:51:30,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f49f9438/d348d84682474426b2c99779f5f8cc87/FLAGc48f9bd2e [2020-12-22 18:51:31,681 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 18:51:31,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2020-12-22 18:51:31,704 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f49f9438/d348d84682474426b2c99779f5f8cc87/FLAGc48f9bd2e [2020-12-22 18:51:31,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f49f9438/d348d84682474426b2c99779f5f8cc87 [2020-12-22 18:51:31,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 18:51:31,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 18:51:31,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 18:51:31,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 18:51:31,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 18:51:31,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:51:31" (1/1) ... [2020-12-22 18:51:31,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658ae146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:31, skipping insertion in model container [2020-12-22 18:51:31,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:51:31" (1/1) ... [2020-12-22 18:51:31,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 18:51:32,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 18:51:32,344 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i[22617,22630] [2020-12-22 18:51:32,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 18:51:32,373 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 18:51:32,457 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i[22617,22630] [2020-12-22 18:51:32,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 18:51:32,531 INFO L208 MainTranslator]: Completed translation [2020-12-22 18:51:32,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32 WrapperNode [2020-12-22 18:51:32,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 18:51:32,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 18:51:32,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 18:51:32,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 18:51:32,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (1/1) ... [2020-12-22 18:51:32,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (1/1) ... [2020-12-22 18:51:32,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 18:51:32,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 18:51:32,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 18:51:32,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 18:51:32,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (1/1) ... [2020-12-22 18:51:32,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (1/1) ... [2020-12-22 18:51:32,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (1/1) ... [2020-12-22 18:51:32,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (1/1) ... [2020-12-22 18:51:32,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (1/1) ... [2020-12-22 18:51:32,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (1/1) ... [2020-12-22 18:51:32,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (1/1) ... [2020-12-22 18:51:32,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 18:51:32,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 18:51:32,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 18:51:32,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 18:51:32,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 18:51:32,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 18:51:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 18:51:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 18:51:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 18:51:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 18:51:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 18:51:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 18:51:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 18:51:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 18:51:32,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 18:51:33,491 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 18:51:33,492 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-22 18:51:33,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:51:33 BoogieIcfgContainer [2020-12-22 18:51:33,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 18:51:33,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 18:51:33,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 18:51:33,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 18:51:33,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:51:31" (1/3) ... [2020-12-22 18:51:33,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5909c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:51:33, skipping insertion in model container [2020-12-22 18:51:33,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:51:32" (2/3) ... [2020-12-22 18:51:33,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5909c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:51:33, skipping insertion in model container [2020-12-22 18:51:33,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:51:33" (3/3) ... [2020-12-22 18:51:33,506 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-2.i [2020-12-22 18:51:33,514 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 18:51:33,526 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 49 error locations. [2020-12-22 18:51:33,550 INFO L253 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2020-12-22 18:51:33,576 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 18:51:33,576 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-22 18:51:33,576 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 18:51:33,576 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 18:51:33,577 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 18:51:33,577 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 18:51:33,577 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 18:51:33,577 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 18:51:33,602 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-12-22 18:51:33,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 18:51:33,610 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:33,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 18:51:33,612 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:33,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:33,619 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-22 18:51:33,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:33,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143103126] [2020-12-22 18:51:33,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:33,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143103126] [2020-12-22 18:51:33,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:33,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 18:51:33,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201286374] [2020-12-22 18:51:33,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 18:51:33,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:33,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 18:51:33,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 18:51:33,860 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 3 states. [2020-12-22 18:51:34,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:34,092 INFO L93 Difference]: Finished difference Result 133 states and 141 transitions. [2020-12-22 18:51:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 18:51:34,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 18:51:34,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:34,106 INFO L225 Difference]: With dead ends: 133 [2020-12-22 18:51:34,107 INFO L226 Difference]: Without dead ends: 129 [2020-12-22 18:51:34,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 18:51:34,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-12-22 18:51:34,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 100. [2020-12-22 18:51:34,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-22 18:51:34,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 106 transitions. [2020-12-22 18:51:34,155 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 106 transitions. Word has length 3 [2020-12-22 18:51:34,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:34,155 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 106 transitions. [2020-12-22 18:51:34,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 18:51:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 106 transitions. [2020-12-22 18:51:34,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 18:51:34,156 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:34,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 18:51:34,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 18:51:34,157 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:34,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:34,158 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-22 18:51:34,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:34,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527657306] [2020-12-22 18:51:34,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:34,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527657306] [2020-12-22 18:51:34,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:34,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 18:51:34,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237210874] [2020-12-22 18:51:34,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 18:51:34,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:34,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 18:51:34,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 18:51:34,220 INFO L87 Difference]: Start difference. First operand 100 states and 106 transitions. Second operand 3 states. [2020-12-22 18:51:34,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:34,390 INFO L93 Difference]: Finished difference Result 127 states and 135 transitions. [2020-12-22 18:51:34,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 18:51:34,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 18:51:34,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:34,393 INFO L225 Difference]: With dead ends: 127 [2020-12-22 18:51:34,393 INFO L226 Difference]: Without dead ends: 127 [2020-12-22 18:51:34,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 18:51:34,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-12-22 18:51:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 98. [2020-12-22 18:51:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-22 18:51:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions. [2020-12-22 18:51:34,407 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 3 [2020-12-22 18:51:34,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:34,408 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions. [2020-12-22 18:51:34,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 18:51:34,408 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions. [2020-12-22 18:51:34,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 18:51:34,409 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:34,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:34,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 18:51:34,412 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:34,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:34,413 INFO L82 PathProgramCache]: Analyzing trace with hash 59263661, now seen corresponding path program 1 times [2020-12-22 18:51:34,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:34,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006430832] [2020-12-22 18:51:34,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:34,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:34,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006430832] [2020-12-22 18:51:34,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:34,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 18:51:34,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574125790] [2020-12-22 18:51:34,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 18:51:34,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:34,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 18:51:34,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 18:51:34,496 INFO L87 Difference]: Start difference. First operand 98 states and 104 transitions. Second operand 4 states. [2020-12-22 18:51:34,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:34,670 INFO L93 Difference]: Finished difference Result 101 states and 107 transitions. [2020-12-22 18:51:34,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 18:51:34,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-22 18:51:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:34,672 INFO L225 Difference]: With dead ends: 101 [2020-12-22 18:51:34,672 INFO L226 Difference]: Without dead ends: 101 [2020-12-22 18:51:34,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 18:51:34,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-22 18:51:34,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2020-12-22 18:51:34,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-12-22 18:51:34,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2020-12-22 18:51:34,682 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 8 [2020-12-22 18:51:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:34,683 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2020-12-22 18:51:34,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 18:51:34,683 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2020-12-22 18:51:34,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 18:51:34,683 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:34,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:34,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 18:51:34,684 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:34,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:34,685 INFO L82 PathProgramCache]: Analyzing trace with hash 59263662, now seen corresponding path program 1 times [2020-12-22 18:51:34,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:34,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277776019] [2020-12-22 18:51:34,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:34,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277776019] [2020-12-22 18:51:34,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:34,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 18:51:34,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137402972] [2020-12-22 18:51:34,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 18:51:34,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:34,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 18:51:34,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 18:51:34,813 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 6 states. [2020-12-22 18:51:35,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:35,143 INFO L93 Difference]: Finished difference Result 129 states and 140 transitions. [2020-12-22 18:51:35,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 18:51:35,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-12-22 18:51:35,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:35,145 INFO L225 Difference]: With dead ends: 129 [2020-12-22 18:51:35,145 INFO L226 Difference]: Without dead ends: 129 [2020-12-22 18:51:35,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 18:51:35,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-12-22 18:51:35,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 108. [2020-12-22 18:51:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-22 18:51:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2020-12-22 18:51:35,155 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 8 [2020-12-22 18:51:35,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:35,155 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2020-12-22 18:51:35,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 18:51:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2020-12-22 18:51:35,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 18:51:35,156 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:35,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:35,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 18:51:35,157 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:35,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:35,158 INFO L82 PathProgramCache]: Analyzing trace with hash 292159341, now seen corresponding path program 1 times [2020-12-22 18:51:35,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:35,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098113245] [2020-12-22 18:51:35,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:35,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:35,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098113245] [2020-12-22 18:51:35,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:35,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 18:51:35,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606747716] [2020-12-22 18:51:35,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 18:51:35,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:35,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 18:51:35,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 18:51:35,237 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand 6 states. [2020-12-22 18:51:35,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:35,620 INFO L93 Difference]: Finished difference Result 184 states and 208 transitions. [2020-12-22 18:51:35,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 18:51:35,620 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 18:51:35,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:35,622 INFO L225 Difference]: With dead ends: 184 [2020-12-22 18:51:35,622 INFO L226 Difference]: Without dead ends: 184 [2020-12-22 18:51:35,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 18:51:35,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-12-22 18:51:35,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 107. [2020-12-22 18:51:35,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-22 18:51:35,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2020-12-22 18:51:35,633 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 11 [2020-12-22 18:51:35,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:35,633 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2020-12-22 18:51:35,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 18:51:35,633 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2020-12-22 18:51:35,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 18:51:35,634 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:35,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:35,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 18:51:35,635 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:35,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:35,635 INFO L82 PathProgramCache]: Analyzing trace with hash 292159342, now seen corresponding path program 1 times [2020-12-22 18:51:35,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:35,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345139802] [2020-12-22 18:51:35,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:35,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345139802] [2020-12-22 18:51:35,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:35,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 18:51:35,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351863840] [2020-12-22 18:51:35,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 18:51:35,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:35,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 18:51:35,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 18:51:35,748 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 6 states. [2020-12-22 18:51:36,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:36,204 INFO L93 Difference]: Finished difference Result 193 states and 219 transitions. [2020-12-22 18:51:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 18:51:36,205 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 18:51:36,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:36,207 INFO L225 Difference]: With dead ends: 193 [2020-12-22 18:51:36,208 INFO L226 Difference]: Without dead ends: 193 [2020-12-22 18:51:36,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 18:51:36,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-12-22 18:51:36,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 99. [2020-12-22 18:51:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-22 18:51:36,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2020-12-22 18:51:36,221 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 11 [2020-12-22 18:51:36,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:36,222 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2020-12-22 18:51:36,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 18:51:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2020-12-22 18:51:36,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 18:51:36,223 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:36,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:36,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 18:51:36,223 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:36,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:36,224 INFO L82 PathProgramCache]: Analyzing trace with hash -196309109, now seen corresponding path program 1 times [2020-12-22 18:51:36,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:36,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532590182] [2020-12-22 18:51:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:36,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:36,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532590182] [2020-12-22 18:51:36,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:36,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 18:51:36,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412668979] [2020-12-22 18:51:36,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 18:51:36,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:36,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 18:51:36,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 18:51:36,362 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand 5 states. [2020-12-22 18:51:36,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:36,529 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2020-12-22 18:51:36,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 18:51:36,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 18:51:36,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:36,531 INFO L225 Difference]: With dead ends: 110 [2020-12-22 18:51:36,531 INFO L226 Difference]: Without dead ends: 110 [2020-12-22 18:51:36,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 18:51:36,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-12-22 18:51:36,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2020-12-22 18:51:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-22 18:51:36,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-12-22 18:51:36,539 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 15 [2020-12-22 18:51:36,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:36,540 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-12-22 18:51:36,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 18:51:36,540 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-12-22 18:51:36,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 18:51:36,541 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:36,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:36,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 18:51:36,542 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:36,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:36,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1840178729, now seen corresponding path program 1 times [2020-12-22 18:51:36,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:36,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983502858] [2020-12-22 18:51:36,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:36,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:36,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983502858] [2020-12-22 18:51:36,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:36,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 18:51:36,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104485940] [2020-12-22 18:51:36,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 18:51:36,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:36,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 18:51:36,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 18:51:36,595 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 5 states. [2020-12-22 18:51:36,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:36,829 INFO L93 Difference]: Finished difference Result 140 states and 157 transitions. [2020-12-22 18:51:36,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 18:51:36,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-22 18:51:36,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:36,831 INFO L225 Difference]: With dead ends: 140 [2020-12-22 18:51:36,832 INFO L226 Difference]: Without dead ends: 140 [2020-12-22 18:51:36,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 18:51:36,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-22 18:51:36,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 104. [2020-12-22 18:51:36,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-22 18:51:36,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-12-22 18:51:36,839 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 16 [2020-12-22 18:51:36,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:36,840 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-12-22 18:51:36,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 18:51:36,840 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-12-22 18:51:36,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 18:51:36,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:36,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:36,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 18:51:36,842 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:36,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:36,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1840178728, now seen corresponding path program 1 times [2020-12-22 18:51:36,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:36,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516845026] [2020-12-22 18:51:36,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:36,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:36,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516845026] [2020-12-22 18:51:36,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:36,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 18:51:36,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660299058] [2020-12-22 18:51:36,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 18:51:36,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:36,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 18:51:36,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 18:51:36,908 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 5 states. [2020-12-22 18:51:37,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:37,178 INFO L93 Difference]: Finished difference Result 149 states and 167 transitions. [2020-12-22 18:51:37,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 18:51:37,179 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-22 18:51:37,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:37,179 INFO L225 Difference]: With dead ends: 149 [2020-12-22 18:51:37,180 INFO L226 Difference]: Without dead ends: 149 [2020-12-22 18:51:37,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 18:51:37,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-12-22 18:51:37,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 103. [2020-12-22 18:51:37,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-22 18:51:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2020-12-22 18:51:37,200 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 16 [2020-12-22 18:51:37,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:37,200 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2020-12-22 18:51:37,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 18:51:37,201 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2020-12-22 18:51:37,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 18:51:37,202 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:37,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:37,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 18:51:37,203 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:37,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:37,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1683595170, now seen corresponding path program 1 times [2020-12-22 18:51:37,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:37,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025756889] [2020-12-22 18:51:37,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:37,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:37,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025756889] [2020-12-22 18:51:37,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982003435] [2020-12-22 18:51:37,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 18:51:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:37,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-22 18:51:37,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 18:51:37,462 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-12-22 18:51:37,464 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 18:51:37,467 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 18:51:37,469 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 18:51:37,470 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-22 18:51:37,562 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 18:51:37,563 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-22 18:51:37,573 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 18:51:37,595 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2020-12-22 18:51:37,596 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 18:51:37,597 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2020-12-22 18:51:37,644 INFO L382 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 11 treesize of output 7 [2020-12-22 18:51:37,645 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 18:51:37,654 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 18:51:37,656 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 18:51:37,657 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2020-12-22 18:51:37,765 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-12-22 18:51:37,767 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 18:51:37,771 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 18:51:37,773 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 18:51:37,774 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11 [2020-12-22 18:51:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:37,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 18:51:37,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-12-22 18:51:37,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186134757] [2020-12-22 18:51:37,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 18:51:37,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:37,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 18:51:37,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-12-22 18:51:37,796 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand 11 states. [2020-12-22 18:51:38,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:38,248 INFO L93 Difference]: Finished difference Result 145 states and 160 transitions. [2020-12-22 18:51:38,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 18:51:38,249 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-12-22 18:51:38,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:38,250 INFO L225 Difference]: With dead ends: 145 [2020-12-22 18:51:38,250 INFO L226 Difference]: Without dead ends: 145 [2020-12-22 18:51:38,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-22 18:51:38,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-12-22 18:51:38,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 106. [2020-12-22 18:51:38,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-22 18:51:38,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2020-12-22 18:51:38,256 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 18 [2020-12-22 18:51:38,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:38,257 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2020-12-22 18:51:38,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 18:51:38,257 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2020-12-22 18:51:38,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 18:51:38,258 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:38,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:38,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 18:51:38,474 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:38,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:38,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1683595169, now seen corresponding path program 1 times [2020-12-22 18:51:38,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:38,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691251012] [2020-12-22 18:51:38,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:38,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:38,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691251012] [2020-12-22 18:51:38,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949480976] [2020-12-22 18:51:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 18:51:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:38,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 31 conjunts are in the unsatisfiable core [2020-12-22 18:51:38,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 18:51:38,690 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-12-22 18:51:38,691 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 18:51:38,693 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 18:51:38,694 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 18:51:38,694 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-22 18:51:38,751 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 18:51:38,751 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-12-22 18:51:38,754 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 18:51:38,774 INFO L625 ElimStorePlain]: treesize reduction 14, result has 54.8 percent of original size [2020-12-22 18:51:38,775 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-22 18:51:38,775 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:17 [2020-12-22 18:51:38,811 INFO L382 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 11 treesize of output 7 [2020-12-22 18:51:38,812 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 18:51:38,828 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 18:51:38,833 INFO L382 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 11 treesize of output 7 [2020-12-22 18:51:38,834 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 18:51:38,846 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 18:51:38,851 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-22 18:51:38,851 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:25 [2020-12-22 18:51:38,969 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-12-22 18:51:38,972 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-22 18:51:38,981 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 18:51:38,985 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-22 18:51:38,988 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-22 18:51:38,995 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-22 18:51:38,999 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-22 18:51:38,999 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:14 [2020-12-22 18:51:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:39,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 18:51:39,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 11 [2020-12-22 18:51:39,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967620754] [2020-12-22 18:51:39,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 18:51:39,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:39,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 18:51:39,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-12-22 18:51:39,025 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand 12 states. [2020-12-22 18:51:39,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:39,603 INFO L93 Difference]: Finished difference Result 169 states and 184 transitions. [2020-12-22 18:51:39,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 18:51:39,604 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2020-12-22 18:51:39,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:39,607 INFO L225 Difference]: With dead ends: 169 [2020-12-22 18:51:39,607 INFO L226 Difference]: Without dead ends: 169 [2020-12-22 18:51:39,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2020-12-22 18:51:39,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-12-22 18:51:39,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 105. [2020-12-22 18:51:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-22 18:51:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 118 transitions. [2020-12-22 18:51:39,623 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 118 transitions. Word has length 18 [2020-12-22 18:51:39,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:39,623 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 118 transitions. [2020-12-22 18:51:39,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 18:51:39,623 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2020-12-22 18:51:39,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 18:51:39,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:39,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:39,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 18:51:39,841 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:39,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:39,842 INFO L82 PathProgramCache]: Analyzing trace with hash 198106148, now seen corresponding path program 1 times [2020-12-22 18:51:39,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:39,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607663719] [2020-12-22 18:51:39,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:40,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607663719] [2020-12-22 18:51:40,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:40,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 18:51:40,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265436637] [2020-12-22 18:51:40,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 18:51:40,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:40,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 18:51:40,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 18:51:40,009 INFO L87 Difference]: Start difference. First operand 105 states and 118 transitions. Second operand 9 states. [2020-12-22 18:51:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:40,425 INFO L93 Difference]: Finished difference Result 111 states and 123 transitions. [2020-12-22 18:51:40,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 18:51:40,426 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-12-22 18:51:40,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:40,427 INFO L225 Difference]: With dead ends: 111 [2020-12-22 18:51:40,427 INFO L226 Difference]: Without dead ends: 111 [2020-12-22 18:51:40,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-12-22 18:51:40,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-12-22 18:51:40,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2020-12-22 18:51:40,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-22 18:51:40,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 117 transitions. [2020-12-22 18:51:40,431 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 117 transitions. Word has length 19 [2020-12-22 18:51:40,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:40,432 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 117 transitions. [2020-12-22 18:51:40,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 18:51:40,432 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 117 transitions. [2020-12-22 18:51:40,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 18:51:40,433 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:40,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:40,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 18:51:40,434 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:40,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:40,434 INFO L82 PathProgramCache]: Analyzing trace with hash 198106149, now seen corresponding path program 1 times [2020-12-22 18:51:40,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:40,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982318461] [2020-12-22 18:51:40,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:40,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982318461] [2020-12-22 18:51:40,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:40,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 18:51:40,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460012132] [2020-12-22 18:51:40,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 18:51:40,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:40,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 18:51:40,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 18:51:40,550 INFO L87 Difference]: Start difference. First operand 104 states and 117 transitions. Second operand 9 states. [2020-12-22 18:51:40,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:40,986 INFO L93 Difference]: Finished difference Result 110 states and 122 transitions. [2020-12-22 18:51:40,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 18:51:40,986 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-12-22 18:51:40,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:40,987 INFO L225 Difference]: With dead ends: 110 [2020-12-22 18:51:40,988 INFO L226 Difference]: Without dead ends: 110 [2020-12-22 18:51:40,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-22 18:51:40,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-12-22 18:51:40,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 103. [2020-12-22 18:51:40,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-22 18:51:40,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2020-12-22 18:51:40,992 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 19 [2020-12-22 18:51:40,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:40,992 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2020-12-22 18:51:40,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 18:51:40,992 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2020-12-22 18:51:40,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 18:51:40,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:40,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:40,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 18:51:40,994 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:40,994 INFO L82 PathProgramCache]: Analyzing trace with hash -653473561, now seen corresponding path program 1 times [2020-12-22 18:51:40,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:40,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008440651] [2020-12-22 18:51:40,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:41,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:41,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008440651] [2020-12-22 18:51:41,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:41,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 18:51:41,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367951636] [2020-12-22 18:51:41,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 18:51:41,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:41,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 18:51:41,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 18:51:41,082 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand 8 states. [2020-12-22 18:51:41,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:41,432 INFO L93 Difference]: Finished difference Result 147 states and 163 transitions. [2020-12-22 18:51:41,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 18:51:41,433 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-12-22 18:51:41,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:41,443 INFO L225 Difference]: With dead ends: 147 [2020-12-22 18:51:41,444 INFO L226 Difference]: Without dead ends: 147 [2020-12-22 18:51:41,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-12-22 18:51:41,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-12-22 18:51:41,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 107. [2020-12-22 18:51:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-22 18:51:41,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2020-12-22 18:51:41,448 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 19 [2020-12-22 18:51:41,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:41,448 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2020-12-22 18:51:41,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 18:51:41,449 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2020-12-22 18:51:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 18:51:41,449 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:41,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 18:51:41,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 18:51:41,450 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:41,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:41,450 INFO L82 PathProgramCache]: Analyzing trace with hash -653473560, now seen corresponding path program 1 times [2020-12-22 18:51:41,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:41,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451083827] [2020-12-22 18:51:41,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 18:51:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 18:51:41,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451083827] [2020-12-22 18:51:41,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 18:51:41,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 18:51:41,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126647804] [2020-12-22 18:51:41,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 18:51:41,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 18:51:41,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 18:51:41,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 18:51:41,540 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 7 states. [2020-12-22 18:51:41,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 18:51:41,978 INFO L93 Difference]: Finished difference Result 171 states and 187 transitions. [2020-12-22 18:51:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 18:51:41,979 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-22 18:51:41,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 18:51:41,980 INFO L225 Difference]: With dead ends: 171 [2020-12-22 18:51:41,980 INFO L226 Difference]: Without dead ends: 171 [2020-12-22 18:51:41,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-12-22 18:51:41,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-12-22 18:51:41,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 109. [2020-12-22 18:51:41,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-12-22 18:51:41,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 124 transitions. [2020-12-22 18:51:41,985 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 124 transitions. Word has length 19 [2020-12-22 18:51:41,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 18:51:41,985 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 124 transitions. [2020-12-22 18:51:41,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 18:51:41,985 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 124 transitions. [2020-12-22 18:51:41,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 18:51:41,988 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 18:51:41,988 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] [2020-12-22 18:51:41,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 18:51:41,989 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-12-22 18:51:41,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 18:51:41,989 INFO L82 PathProgramCache]: Analyzing trace with hash -922863604, now seen corresponding path program 1 times [2020-12-22 18:51:41,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 18:51:41,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475762756] [2020-12-22 18:51:41,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 18:51:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 18:51:42,034 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 18:51:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 18:51:42,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 18:51:42,110 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 18:51:42,110 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 18:51:42,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 18:51:42,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:51:42 BoogieIcfgContainer [2020-12-22 18:51:42,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 18:51:42,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 18:51:42,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 18:51:42,178 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 18:51:42,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:51:33" (3/4) ... [2020-12-22 18:51:42,181 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 18:51:42,249 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/forester-heap/sll-simple-white-blue-2.i-witness.graphml [2020-12-22 18:51:42,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 18:51:42,252 INFO L168 Benchmark]: Toolchain (without parser) took 10286.50 ms. Allocated memory was 153.1 MB in the beginning and 228.6 MB in the end (delta: 75.5 MB). Free memory was 126.5 MB in the beginning and 144.2 MB in the end (delta: -17.7 MB). Peak memory consumption was 59.2 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,255 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 18:51:42,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.20 ms. Allocated memory is still 153.1 MB. Free memory was 126.1 MB in the beginning and 104.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.64 ms. Allocated memory is still 153.1 MB. Free memory was 104.1 MB in the beginning and 102.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,256 INFO L168 Benchmark]: Boogie Preprocessor took 52.41 ms. Allocated memory is still 153.1 MB. Free memory was 102.2 MB in the beginning and 100.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,257 INFO L168 Benchmark]: RCFGBuilder took 848.61 ms. Allocated memory is still 153.1 MB. Free memory was 100.5 MB in the beginning and 101.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 4.0 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,257 INFO L168 Benchmark]: TraceAbstraction took 8680.22 ms. Allocated memory was 153.1 MB in the beginning and 228.6 MB in the end (delta: 75.5 MB). Free memory was 101.4 MB in the beginning and 146.8 MB in the end (delta: -45.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,258 INFO L168 Benchmark]: Witness Printer took 71.35 ms. Allocated memory is still 228.6 MB. Free memory was 146.3 MB in the beginning and 144.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 18:51:42,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 564.20 ms. Allocated memory is still 153.1 MB. Free memory was 126.1 MB in the beginning and 104.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.64 ms. Allocated memory is still 153.1 MB. Free memory was 104.1 MB in the beginning and 102.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 52.41 ms. Allocated memory is still 153.1 MB. Free memory was 102.2 MB in the beginning and 100.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 848.61 ms. Allocated memory is still 153.1 MB. Free memory was 100.5 MB in the beginning and 101.9 MB in the end (delta: -1.4 MB). Peak memory consumption was 4.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8680.22 ms. Allocated memory was 153.1 MB in the beginning and 228.6 MB in the end (delta: 75.5 MB). Free memory was 101.4 MB in the beginning and 146.8 MB in the end (delta: -45.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 8.0 GB. * Witness Printer took 71.35 ms. Allocated memory is still 228.6 MB. Free memory was 146.3 MB in the beginning and 144.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1053]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L999] SLL* head = malloc(sizeof(SLL)); [L1000] head->next = ((void*)0) [L1001] head->data = 0 [L1003] SLL* x = head; [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1016] COND TRUE __VERIFIER_nondet_int() [L1017] x = malloc(sizeof(SLL)) [L1018] x->data = 1 [L1019] x->next = head [L1020] head = x [L1040] x = head [L1043] EXPR x->data [L1043] COND FALSE !(x->data != 1) [L1049] EXPR x->next [L1049] x = x->next [L1050] COND TRUE \read(*x) [L1052] EXPR x->data [L1052] COND TRUE x->data != 1 [L1053] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 105 locations, 49 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.5s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 897 SDtfs, 2222 SDslu, 1561 SDs, 0 SdLazy, 3738 SolverSat, 360 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 48 SyntacticMatches, 7 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 564 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 26493 SizeOfPredicates, 24 NumberOfNonLiveVariables, 234 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 1/5 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 incorrect! Received shutdown request...