/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:16:21,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:16:21,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:16:21,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:16:21,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:16:21,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:16:21,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:16:21,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:16:21,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:16:21,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:16:21,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:16:21,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:16:21,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:16:21,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:16:21,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:16:21,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:16:21,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:16:21,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:16:21,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:16:21,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:16:21,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:16:21,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:16:21,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:16:21,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:16:21,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:16:21,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:16:21,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:16:21,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:16:21,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:16:21,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:16:21,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:16:21,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:16:21,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:16:21,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:16:21,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:16:21,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:16:21,201 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-New_States.epf [2020-11-12 12:16:21,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:16:21,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:16:21,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:16:21,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:16:21,235 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:16:21,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:16:21,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:16:21,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:16:21,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:16:21,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:16:21,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:16:21,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:16:21,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:16:21,238 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:16:21,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:16:21,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:16:21,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:16:21,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:16:21,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:16:21,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:16:21,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:16:21,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:16:21,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:16:21,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:16:21,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:16:21,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:16:21,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:16:21,241 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:16:21,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:16:21,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:16:21,242 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:16:21,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:16:21,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:16:21,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:16:21,744 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:16:21,748 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:16:21,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-11-12 12:16:21,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddd79a718/9a4b634087d5410cabed33ff010493bd/FLAGfbd37aa3a [2020-11-12 12:16:22,610 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:16:22,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2020-11-12 12:16:22,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddd79a718/9a4b634087d5410cabed33ff010493bd/FLAGfbd37aa3a [2020-11-12 12:16:22,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddd79a718/9a4b634087d5410cabed33ff010493bd [2020-11-12 12:16:22,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:16:22,848 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:16:22,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:16:22,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:16:22,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:16:22,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:16:22" (1/1) ... [2020-11-12 12:16:22,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58bf8021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:22, skipping insertion in model container [2020-11-12 12:16:22,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:16:22" (1/1) ... [2020-11-12 12:16:22,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:16:22,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:16:23,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:16:23,343 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:16:23,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:16:23,489 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:16:23,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23 WrapperNode [2020-11-12 12:16:23,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:16:23,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:16:23,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:16:23,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:16:23,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (1/1) ... [2020-11-12 12:16:23,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (1/1) ... [2020-11-12 12:16:23,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:16:23,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:16:23,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:16:23,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:16:23,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (1/1) ... [2020-11-12 12:16:23,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (1/1) ... [2020-11-12 12:16:23,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (1/1) ... [2020-11-12 12:16:23,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (1/1) ... [2020-11-12 12:16:23,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (1/1) ... [2020-11-12 12:16:23,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (1/1) ... [2020-11-12 12:16:23,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (1/1) ... [2020-11-12 12:16:23,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:16:23,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:16:23,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:16:23,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:16:23,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (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 [2020-11-12 12:16:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:16:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:16:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:16:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:16:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:16:23,671 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:16:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:16:23,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:16:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:16:23,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:16:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:16:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:16:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:16:23,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:16:23,675 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:16:24,095 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:16:24,095 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:16:24,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:16:24 BoogieIcfgContainer [2020-11-12 12:16:24,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:16:24,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:16:24,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:16:24,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:16:24,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:16:22" (1/3) ... [2020-11-12 12:16:24,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42941557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:16:24, skipping insertion in model container [2020-11-12 12:16:24,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:16:23" (2/3) ... [2020-11-12 12:16:24,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42941557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:16:24, skipping insertion in model container [2020-11-12 12:16:24,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:16:24" (3/3) ... [2020-11-12 12:16:24,107 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2020-11-12 12:16:24,124 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:16:24,124 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:16:24,127 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:16:24,128 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:16:24,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,175 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,175 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,178 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,179 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,179 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,179 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,180 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,181 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,182 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,182 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,182 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,183 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,184 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,184 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,187 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,187 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,193 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,193 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,197 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,197 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:16:24,200 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:16:24,213 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:16:24,237 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:16:24,237 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:16:24,237 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:16:24,238 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:16:24,238 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:16:24,238 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:16:24,238 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:16:24,238 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:16:24,250 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-11-12 12:16:25,143 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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) [2020-11-12 12:16:26,041 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 894ms [2020-11-12 12:16:26,085 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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) [2020-11-12 12:16:26,245 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 33728 states, 30825 states have (on average 1.1892619626926195) internal successors, (36659), 33727 states have internal predecessors, (36659), 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) [2020-11-12 12:16:26,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 33728 states, 30825 states have (on average 1.1892619626926195) internal successors, (36659), 33727 states have internal predecessors, (36659), 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) [2020-11-12 12:16:26,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 12:16:26,393 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:26,394 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:16:26,394 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:26,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:26,401 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2020-11-12 12:16:26,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:26,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050748684] [2020-11-12 12:16:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:27,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:16:27,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050748684] [2020-11-12 12:16:27,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:27,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:16:27,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039268383] [2020-11-12 12:16:27,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:16:27,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:27,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:16:27,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:16:27,118 INFO L87 Difference]: Start difference. First operand has 33728 states, 30825 states have (on average 1.1892619626926195) internal successors, (36659), 33727 states have internal predecessors, (36659), 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 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-11-12 12:16:27,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:27,472 INFO L93 Difference]: Finished difference Result 13910 states and 15909 transitions. [2020-11-12 12:16:27,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:16:27,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2020-11-12 12:16:27,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:27,517 INFO L225 Difference]: With dead ends: 13910 [2020-11-12 12:16:27,517 INFO L226 Difference]: Without dead ends: 4351 [2020-11-12 12:16:27,519 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:16:27,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4351 states. [2020-11-12 12:16:27,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4351 to 4351. [2020-11-12 12:16:27,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 4106 states have (on average 1.3027277155382366) internal successors, (5349), 4350 states have internal predecessors, (5349), 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) [2020-11-12 12:16:27,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 5349 transitions. [2020-11-12 12:16:27,808 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 5349 transitions. Word has length 43 [2020-11-12 12:16:27,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:27,809 INFO L481 AbstractCegarLoop]: Abstraction has 4351 states and 5349 transitions. [2020-11-12 12:16:27,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2020-11-12 12:16:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 5349 transitions. [2020-11-12 12:16:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:16:27,827 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:27,827 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:16:27,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:16:27,835 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:27,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:27,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2020-11-12 12:16:27,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:27,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701206637] [2020-11-12 12:16:27,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:28,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:16:28,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701206637] [2020-11-12 12:16:28,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:28,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:16:28,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930881157] [2020-11-12 12:16:28,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:16:28,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:28,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:16:28,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:16:28,234 INFO L87 Difference]: Start difference. First operand 4351 states and 5349 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) [2020-11-12 12:16:28,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:28,545 INFO L93 Difference]: Finished difference Result 5577 states and 6924 transitions. [2020-11-12 12:16:28,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:16:28,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) Word has length 45 [2020-11-12 12:16:28,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:28,558 INFO L225 Difference]: With dead ends: 5577 [2020-11-12 12:16:28,558 INFO L226 Difference]: Without dead ends: 2343 [2020-11-12 12:16:28,559 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:16:28,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2020-11-12 12:16:28,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 2343. [2020-11-12 12:16:28,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2203 states have (on average 1.2687244666364048) internal successors, (2795), 2342 states have internal predecessors, (2795), 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) [2020-11-12 12:16:28,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 2795 transitions. [2020-11-12 12:16:28,614 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 2795 transitions. Word has length 45 [2020-11-12 12:16:28,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:28,615 INFO L481 AbstractCegarLoop]: Abstraction has 2343 states and 2795 transitions. [2020-11-12 12:16:28,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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) [2020-11-12 12:16:28,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 2795 transitions. [2020-11-12 12:16:28,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 12:16:28,622 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:28,622 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:16:28,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:16:28,622 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:28,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:28,623 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2020-11-12 12:16:28,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:28,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894995107] [2020-11-12 12:16:28,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:16:28,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894995107] [2020-11-12 12:16:28,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:28,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:16:28,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123383871] [2020-11-12 12:16:28,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:16:28,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:28,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:16:28,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:16:28,804 INFO L87 Difference]: Start difference. First operand 2343 states and 2795 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-12 12:16:29,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:29,105 INFO L93 Difference]: Finished difference Result 3031 states and 3674 transitions. [2020-11-12 12:16:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:16:29,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2020-11-12 12:16:29,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:29,113 INFO L225 Difference]: With dead ends: 3031 [2020-11-12 12:16:29,114 INFO L226 Difference]: Without dead ends: 1308 [2020-11-12 12:16:29,114 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:16:29,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2020-11-12 12:16:29,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1308. [2020-11-12 12:16:29,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 1228 states have (on average 1.223127035830619) internal successors, (1502), 1307 states have internal predecessors, (1502), 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) [2020-11-12 12:16:29,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1502 transitions. [2020-11-12 12:16:29,144 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 1502 transitions. Word has length 48 [2020-11-12 12:16:29,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:29,146 INFO L481 AbstractCegarLoop]: Abstraction has 1308 states and 1502 transitions. [2020-11-12 12:16:29,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-12 12:16:29,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 1502 transitions. [2020-11-12 12:16:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:16:29,149 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:16:29,149 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:16:29,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:16:29,149 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:16:29,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:16:29,152 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2020-11-12 12:16:29,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:16:29,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682341477] [2020-11-12 12:16:29,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:16:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:16:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:16:29,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682341477] [2020-11-12 12:16:29,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:16:29,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:16:29,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129109226] [2020-11-12 12:16:29,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:16:29,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:16:29,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:16:29,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:16:29,344 INFO L87 Difference]: Start difference. First operand 1308 states and 1502 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2020-11-12 12:16:29,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:16:29,587 INFO L93 Difference]: Finished difference Result 988 states and 1182 transitions. [2020-11-12 12:16:29,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:16:29,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2020-11-12 12:16:29,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:16:29,588 INFO L225 Difference]: With dead ends: 988 [2020-11-12 12:16:29,588 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:16:29,588 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:16:29,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:16:29,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:16:29,589 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) [2020-11-12 12:16:29,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:16:29,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-11-12 12:16:29,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:16:29,590 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:16:29,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2020-11-12 12:16:29,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:16:29,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:16:29,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:16:29,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:16:29 BasicIcfg [2020-11-12 12:16:29,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:16:29,598 INFO L168 Benchmark]: Toolchain (without parser) took 6754.65 ms. Allocated memory was 306.2 MB in the beginning and 742.4 MB in the end (delta: 436.2 MB). Free memory was 281.5 MB in the beginning and 576.6 MB in the end (delta: -295.0 MB). Peak memory consumption was 143.6 MB. Max. memory is 16.0 GB. [2020-11-12 12:16:29,599 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 306.2 MB. Free memory is still 276.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:16:29,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.09 ms. Allocated memory is still 306.2 MB. Free memory was 280.9 MB in the beginning and 250.1 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:16:29,601 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.88 ms. Allocated memory is still 306.2 MB. Free memory was 250.1 MB in the beginning and 288.8 MB in the end (delta: -38.8 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:16:29,601 INFO L168 Benchmark]: Boogie Preprocessor took 26.38 ms. Allocated memory is still 306.2 MB. Free memory was 287.8 MB in the beginning and 286.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:16:29,602 INFO L168 Benchmark]: RCFGBuilder took 514.31 ms. Allocated memory is still 306.2 MB. Free memory was 286.7 MB in the beginning and 263.7 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:16:29,603 INFO L168 Benchmark]: TraceAbstraction took 5496.19 ms. Allocated memory was 306.2 MB in the beginning and 742.4 MB in the end (delta: 436.2 MB). Free memory was 263.7 MB in the beginning and 576.6 MB in the end (delta: -312.9 MB). Peak memory consumption was 124.3 MB. Max. memory is 16.0 GB. [2020-11-12 12:16:29,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 306.2 MB. Free memory is still 276.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 639.09 ms. Allocated memory is still 306.2 MB. Free memory was 280.9 MB in the beginning and 250.1 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 64.88 ms. Allocated memory is still 306.2 MB. Free memory was 250.1 MB in the beginning and 288.8 MB in the end (delta: -38.8 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.38 ms. Allocated memory is still 306.2 MB. Free memory was 287.8 MB in the beginning and 286.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 514.31 ms. Allocated memory is still 306.2 MB. Free memory was 286.7 MB in the beginning and 263.7 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5496.19 ms. Allocated memory was 306.2 MB in the beginning and 742.4 MB in the end (delta: 436.2 MB). Free memory was 263.7 MB in the beginning and 576.6 MB in the end (delta: -312.9 MB). Peak memory consumption was 124.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 273 SDtfs, 394 SDslu, 1073 SDs, 0 SdLazy, 90 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33728occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 23913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...