/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/simpleReturn.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 20:30:13,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 20:30:13,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 20:30:13,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 20:30:13,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 20:30:13,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 20:30:13,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 20:30:13,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 20:30:13,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 20:30:13,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 20:30:13,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 20:30:13,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 20:30:13,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 20:30:13,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 20:30:13,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 20:30:13,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 20:30:13,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 20:30:13,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 20:30:13,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 20:30:13,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 20:30:13,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 20:30:13,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 20:30:13,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 20:30:13,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 20:30:13,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 20:30:13,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 20:30:13,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 20:30:13,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 20:30:13,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-03-10 20:30:13,597 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 20:30:13,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 20:30:13,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 20:30:13,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 20:30:13,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 20:30:13,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 20:30:13,602 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 20:30:13,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 20:30:13,602 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 20:30:13,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 20:30:13,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 20:30:13,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 20:30:13,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 20:30:13,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 20:30:13,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 20:30:13,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 20:30:13,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 20:30:13,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 20:30:13,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 20:30:13,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 20:30:13,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 20:30:13,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 20:30:13,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 20:30:13,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 20:30:13,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 20:30:13,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 20:30:13,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 20:30:13,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 20:30:13,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 20:30:13,606 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 20:30:13,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 20:30:13,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 20:30:13,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 20:30:13,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 20:30:13,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 20:30:13,931 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 20:30:13,931 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 20:30:13,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/simpleReturn.c [2021-03-10 20:30:13,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/473d62e50/582056da44df43438edb5379a2ed2a85/FLAG596dad886 [2021-03-10 20:30:14,517 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 20:30:14,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/simpleReturn.c [2021-03-10 20:30:14,519 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-10 20:30:14,520 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-10 20:30:14,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/473d62e50/582056da44df43438edb5379a2ed2a85/FLAG596dad886 [2021-03-10 20:30:15,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/473d62e50/582056da44df43438edb5379a2ed2a85 [2021-03-10 20:30:15,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 20:30:15,012 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 20:30:15,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 20:30:15,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 20:30:15,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 20:30:15,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541d4fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15, skipping insertion in model container [2021-03-10 20:30:15,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 20:30:15,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 20:30:15,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:30:15,152 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 20:30:15,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:30:15,198 INFO L208 MainTranslator]: Completed translation [2021-03-10 20:30:15,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15 WrapperNode [2021-03-10 20:30:15,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 20:30:15,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 20:30:15,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 20:30:15,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 20:30:15,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 20:30:15,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 20:30:15,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 20:30:15,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 20:30:15,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (1/1) ... [2021-03-10 20:30:15,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 20:30:15,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 20:30:15,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 20:30:15,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 20:30:15,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 20:30:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-03-10 20:30:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 20:30:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-03-10 20:30:15,317 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-03-10 20:30:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 20:30:15,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 20:30:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 20:30:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 20:30:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-10 20:30:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 20:30:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 20:30:15,320 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 20:30:15,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 20:30:15,679 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-10 20:30:15,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:30:15 BoogieIcfgContainer [2021-03-10 20:30:15,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 20:30:15,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 20:30:15,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 20:30:15,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 20:30:15,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 08:30:15" (1/3) ... [2021-03-10 20:30:15,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b63c9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:30:15, skipping insertion in model container [2021-03-10 20:30:15,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:15" (2/3) ... [2021-03-10 20:30:15,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b63c9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:30:15, skipping insertion in model container [2021-03-10 20:30:15,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:30:15" (3/3) ... [2021-03-10 20:30:15,687 INFO L111 eAbstractionObserver]: Analyzing ICFG simpleReturn.c [2021-03-10 20:30:15,692 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 20:30:15,692 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 20:30:15,696 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 20:30:15,696 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 20:30:15,718 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,718 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,718 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,718 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,718 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,719 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,719 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,719 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,719 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,719 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,719 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,720 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,720 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,720 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,720 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,720 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,720 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,721 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,721 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,721 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,721 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,721 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,721 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,722 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,722 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,722 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,722 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,722 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,722 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,723 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,723 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,723 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,723 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,723 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,723 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,723 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,724 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,724 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,726 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,726 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,726 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,726 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,726 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,727 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,727 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:15,736 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-10 20:30:15,751 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-10 20:30:15,767 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:30:15,768 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:30:15,768 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:30:15,768 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:30:15,768 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:30:15,768 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:30:15,768 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:30:15,768 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:30:15,777 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 42 transitions, 92 flow [2021-03-10 20:30:15,786 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 63 states, 61 states have (on average 1.360655737704918) internal successors, (83), 62 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:15,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 61 states have (on average 1.360655737704918) internal successors, (83), 62 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:15,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-10 20:30:15,794 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:30:15,795 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:30:15,795 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:30:15,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:30:15,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2063557262, now seen corresponding path program 1 times [2021-03-10 20:30:15,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:30:15,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379379210] [2021-03-10 20:30:15,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:30:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:30:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:30:16,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379379210] [2021-03-10 20:30:16,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:30:16,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 20:30:16,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573426227] [2021-03-10 20:30:16,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 20:30:16,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:30:16,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 20:30:16,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-03-10 20:30:16,316 INFO L87 Difference]: Start difference. First operand has 63 states, 61 states have (on average 1.360655737704918) internal successors, (83), 62 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:30:17,257 INFO L93 Difference]: Finished difference Result 87 states and 107 transitions. [2021-03-10 20:30:17,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 20:30:17,258 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-10 20:30:17,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:30:17,263 INFO L225 Difference]: With dead ends: 87 [2021-03-10 20:30:17,264 INFO L226 Difference]: Without dead ends: 49 [2021-03-10 20:30:17,266 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 832.2ms TimeCoverageRelationStatistics Valid=264, Invalid=1458, Unknown=0, NotChecked=0, Total=1722 [2021-03-10 20:30:17,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-03-10 20:30:17,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-03-10 20:30:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 48 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2021-03-10 20:30:17,291 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 65 transitions. Word has length 31 [2021-03-10 20:30:17,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:30:17,292 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 65 transitions. [2021-03-10 20:30:17,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:17,292 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2021-03-10 20:30:17,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-10 20:30:17,293 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:30:17,293 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:30:17,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 20:30:17,294 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:30:17,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:30:17,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1431586604, now seen corresponding path program 2 times [2021-03-10 20:30:17,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:30:17,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325864823] [2021-03-10 20:30:17,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:30:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:30:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:30:17,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325864823] [2021-03-10 20:30:17,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:30:17,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 20:30:17,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333013845] [2021-03-10 20:30:17,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 20:30:17,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:30:17,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 20:30:17,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-03-10 20:30:17,617 INFO L87 Difference]: Start difference. First operand 49 states and 65 transitions. Second operand has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:18,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:30:18,377 INFO L93 Difference]: Finished difference Result 67 states and 85 transitions. [2021-03-10 20:30:18,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-03-10 20:30:18,378 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-10 20:30:18,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:30:18,379 INFO L225 Difference]: With dead ends: 67 [2021-03-10 20:30:18,379 INFO L226 Difference]: Without dead ends: 45 [2021-03-10 20:30:18,380 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 713.1ms TimeCoverageRelationStatistics Valid=266, Invalid=1140, Unknown=0, NotChecked=0, Total=1406 [2021-03-10 20:30:18,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-03-10 20:30:18,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-03-10 20:30:18,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 44 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:18,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2021-03-10 20:30:18,386 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 31 [2021-03-10 20:30:18,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:30:18,386 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2021-03-10 20:30:18,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2021-03-10 20:30:18,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-10 20:30:18,387 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:30:18,387 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:30:18,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 20:30:18,387 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:30:18,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:30:18,388 INFO L82 PathProgramCache]: Analyzing trace with hash 327280468, now seen corresponding path program 3 times [2021-03-10 20:30:18,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:30:18,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300065637] [2021-03-10 20:30:18,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:30:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:30:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:30:18,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300065637] [2021-03-10 20:30:18,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:30:18,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 20:30:18,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543452946] [2021-03-10 20:30:18,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 20:30:18,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:30:18,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 20:30:18,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-03-10 20:30:18,649 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:19,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:30:19,317 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2021-03-10 20:30:19,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-03-10 20:30:19,318 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-10 20:30:19,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:30:19,318 INFO L225 Difference]: With dead ends: 65 [2021-03-10 20:30:19,319 INFO L226 Difference]: Without dead ends: 43 [2021-03-10 20:30:19,319 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 603.3ms TimeCoverageRelationStatistics Valid=253, Invalid=1153, Unknown=0, NotChecked=0, Total=1406 [2021-03-10 20:30:19,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-03-10 20:30:19,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-03-10 20:30:19,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 42 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:19,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2021-03-10 20:30:19,323 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 31 [2021-03-10 20:30:19,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:30:19,324 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2021-03-10 20:30:19,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:19,324 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2021-03-10 20:30:19,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-10 20:30:19,325 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:30:19,325 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:30:19,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 20:30:19,325 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:30:19,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:30:19,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1731554394, now seen corresponding path program 4 times [2021-03-10 20:30:19,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:30:19,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675933463] [2021-03-10 20:30:19,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:30:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:30:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:30:19,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675933463] [2021-03-10 20:30:19,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:30:19,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 20:30:19,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917108155] [2021-03-10 20:30:19,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 20:30:19,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:30:19,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 20:30:19,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-03-10 20:30:19,561 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:20,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:30:20,158 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2021-03-10 20:30:20,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 20:30:20,158 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-10 20:30:20,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:30:20,159 INFO L225 Difference]: With dead ends: 65 [2021-03-10 20:30:20,159 INFO L226 Difference]: Without dead ends: 41 [2021-03-10 20:30:20,160 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 579.0ms TimeCoverageRelationStatistics Valid=243, Invalid=1089, Unknown=0, NotChecked=0, Total=1332 [2021-03-10 20:30:20,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-03-10 20:30:20,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-03-10 20:30:20,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2021-03-10 20:30:20,163 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 31 [2021-03-10 20:30:20,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:30:20,164 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2021-03-10 20:30:20,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:20,164 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2021-03-10 20:30:20,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-10 20:30:20,164 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:30:20,165 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:30:20,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 20:30:20,165 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:30:20,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:30:20,165 INFO L82 PathProgramCache]: Analyzing trace with hash -542677548, now seen corresponding path program 5 times [2021-03-10 20:30:20,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:30:20,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087827546] [2021-03-10 20:30:20,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:30:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:30:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:30:20,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087827546] [2021-03-10 20:30:20,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:30:20,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 20:30:20,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599547357] [2021-03-10 20:30:20,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 20:30:20,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:30:20,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 20:30:20,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-03-10 20:30:20,371 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:30:20,944 INFO L93 Difference]: Finished difference Result 65 states and 78 transitions. [2021-03-10 20:30:20,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 20:30:20,949 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-10 20:30:20,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:30:20,949 INFO L225 Difference]: With dead ends: 65 [2021-03-10 20:30:20,949 INFO L226 Difference]: Without dead ends: 39 [2021-03-10 20:30:20,950 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 535.0ms TimeCoverageRelationStatistics Valid=243, Invalid=1089, Unknown=0, NotChecked=0, Total=1332 [2021-03-10 20:30:20,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-03-10 20:30:20,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-03-10 20:30:20,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:20,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2021-03-10 20:30:20,953 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 31 [2021-03-10 20:30:20,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:30:20,953 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2021-03-10 20:30:20,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:20,954 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2021-03-10 20:30:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-10 20:30:20,954 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:30:20,954 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:30:20,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 20:30:20,955 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:30:20,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:30:20,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1286378202, now seen corresponding path program 6 times [2021-03-10 20:30:20,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:30:20,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234495906] [2021-03-10 20:30:20,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:30:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:30:21,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:30:21,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234495906] [2021-03-10 20:30:21,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:30:21,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 20:30:21,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211591243] [2021-03-10 20:30:21,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 20:30:21,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:30:21,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 20:30:21,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-03-10 20:30:21,199 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:21,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:30:21,731 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2021-03-10 20:30:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 20:30:21,731 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-10 20:30:21,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:30:21,731 INFO L225 Difference]: With dead ends: 38 [2021-03-10 20:30:21,731 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 20:30:21,732 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 541.2ms TimeCoverageRelationStatistics Valid=243, Invalid=1089, Unknown=0, NotChecked=0, Total=1332 [2021-03-10 20:30:21,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 20:30:21,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 20:30:21,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 20:30:21,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-03-10 20:30:21,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:30:21,733 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 20:30:21,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:21,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 20:30:21,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 20:30:21,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 20:30:21,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 08:30:21 BasicIcfg [2021-03-10 20:30:21,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 20:30:21,738 INFO L168 Benchmark]: Toolchain (without parser) took 6729.94 ms. Allocated memory was 255.9 MB in the beginning and 457.2 MB in the end (delta: 201.3 MB). Free memory was 234.7 MB in the beginning and 231.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 203.4 MB. Max. memory is 16.0 GB. [2021-03-10 20:30:21,738 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:30:21,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.91 ms. Allocated memory was 255.9 MB in the beginning and 379.6 MB in the end (delta: 123.7 MB). Free memory was 234.1 MB in the beginning and 364.2 MB in the end (delta: -130.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-10 20:30:21,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.35 ms. Allocated memory is still 379.6 MB. Free memory was 364.2 MB in the beginning and 362.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:30:21,739 INFO L168 Benchmark]: Boogie Preprocessor took 15.22 ms. Allocated memory is still 379.6 MB. Free memory was 362.8 MB in the beginning and 361.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 20:30:21,739 INFO L168 Benchmark]: RCFGBuilder took 436.86 ms. Allocated memory is still 379.6 MB. Free memory was 361.3 MB in the beginning and 346.0 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-10 20:30:21,740 INFO L168 Benchmark]: TraceAbstraction took 6055.01 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 345.6 MB in the beginning and 231.8 MB in the end (delta: 113.9 MB). Peak memory consumption was 189.8 MB. Max. memory is 16.0 GB. [2021-03-10 20:30:21,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 185.91 ms. Allocated memory was 255.9 MB in the beginning and 379.6 MB in the end (delta: 123.7 MB). Free memory was 234.1 MB in the beginning and 364.2 MB in the end (delta: -130.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.35 ms. Allocated memory is still 379.6 MB. Free memory was 364.2 MB in the beginning and 362.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.22 ms. Allocated memory is still 379.6 MB. Free memory was 362.8 MB in the beginning and 361.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 436.86 ms. Allocated memory is still 379.6 MB. Free memory was 361.3 MB in the beginning and 346.0 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6055.01 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 345.6 MB in the beginning and 231.8 MB in the end (delta: 113.9 MB). Peak memory consumption was 189.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5968.3ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 10.7ms, AutomataDifference: 4110.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 107 SDtfs, 818 SDslu, 1311 SDs, 0 SdLazy, 2060 SolverSat, 138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 947.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 3804.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 140, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 31.3ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.6ms SsaConstructionTime, 111.9ms SatisfiabilityAnalysisTime, 1548.4ms InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 1636 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...