/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:27:07,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:27:07,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:27:07,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:27:07,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:27:07,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:27:07,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:27:07,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:27:07,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:27:07,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:27:07,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:27:07,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:27:07,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:27:07,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:27:07,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:27:07,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:27:07,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:27:07,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:27:07,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:27:07,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:27:07,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:27:07,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:27:07,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:27:07,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:27:07,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:27:07,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:27:07,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:27:07,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:27:07,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:27:07,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:27:07,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:27:07,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:27:07,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:27:07,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:27:07,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:27:07,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:27:07,169 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-keepdead.epf [2021-01-20 21:27:07,199 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:27:07,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:27:07,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:27:07,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:27:07,202 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:27:07,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:27:07,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:27:07,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:27:07,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:27:07,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:27:07,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:27:07,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:27:07,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:27:07,204 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:27:07,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:27:07,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:27:07,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:27:07,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:27:07,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:27:07,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:27:07,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:27:07,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:27:07,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:27:07,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:27:07,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:27:07,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:27:07,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:27:07,208 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:27:07,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:27:07,209 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:27:07,209 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:27:07,209 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:27:07,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:27:07,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:27:07,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:27:07,681 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:27:07,682 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:27:07,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-01-20 21:27:07,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ec00dd86/2f61abeffdde44788c57ec013f250336/FLAGffdd8debb [2021-01-20 21:27:08,545 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:27:08,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-01-20 21:27:08,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ec00dd86/2f61abeffdde44788c57ec013f250336/FLAGffdd8debb [2021-01-20 21:27:08,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ec00dd86/2f61abeffdde44788c57ec013f250336 [2021-01-20 21:27:08,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:27:08,787 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:27:08,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:27:08,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:27:08,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:27:08,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:27:08" (1/1) ... [2021-01-20 21:27:08,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b36051a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:08, skipping insertion in model container [2021-01-20 21:27:08,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:27:08" (1/1) ... [2021-01-20 21:27:08,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:27:08,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:27:09,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:27:09,311 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:27:09,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:27:09,500 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:27:09,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09 WrapperNode [2021-01-20 21:27:09,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:27:09,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:27:09,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:27:09,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:27:09,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (1/1) ... [2021-01-20 21:27:09,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (1/1) ... [2021-01-20 21:27:09,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:27:09,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:27:09,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:27:09,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:27:09,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (1/1) ... [2021-01-20 21:27:09,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (1/1) ... [2021-01-20 21:27:09,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (1/1) ... [2021-01-20 21:27:09,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (1/1) ... [2021-01-20 21:27:09,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (1/1) ... [2021-01-20 21:27:09,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (1/1) ... [2021-01-20 21:27:09,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (1/1) ... [2021-01-20 21:27:09,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:27:09,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:27:09,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:27:09,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:27:09,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (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 [2021-01-20 21:27:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:27:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:27:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:27:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:27:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:27:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:27:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:27:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:27:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:27:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:27:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:27:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:27:09,678 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:27:10,122 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:27:10,122 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:27:10,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:27:10 BoogieIcfgContainer [2021-01-20 21:27:10,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:27:10,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:27:10,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:27:10,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:27:10,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:27:08" (1/3) ... [2021-01-20 21:27:10,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b60ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:27:10, skipping insertion in model container [2021-01-20 21:27:10,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:27:09" (2/3) ... [2021-01-20 21:27:10,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b60ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:27:10, skipping insertion in model container [2021-01-20 21:27:10,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:27:10" (3/3) ... [2021-01-20 21:27:10,134 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2021-01-20 21:27:10,150 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:27:10,151 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:27:10,155 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:27:10,156 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:27:10,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,184 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,184 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,184 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,185 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,185 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,185 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,185 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,187 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,187 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,188 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,188 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,192 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,192 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,201 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,201 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,201 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:27:10,204 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:27:10,218 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 21:27:10,242 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:27:10,242 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:27:10,242 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:27:10,242 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:27:10,242 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:27:10,243 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:27:10,243 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:27:10,243 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:27:10,255 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2021-01-20 21:27:10,352 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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) [2021-01-20 21:27:10,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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) [2021-01-20 21:27:10,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-01-20 21:27:10,380 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:10,381 INFO L504 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] [2021-01-20 21:27:10,381 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:10,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:10,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1850588041, now seen corresponding path program 1 times [2021-01-20 21:27:10,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:10,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476119903] [2021-01-20 21:27:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:10,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476119903] [2021-01-20 21:27:10,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:10,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:27:10,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324329298] [2021-01-20 21:27:10,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:27:10,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:10,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:27:10,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:27:10,819 INFO L87 Difference]: Start difference. First operand has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-01-20 21:27:11,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:11,079 INFO L93 Difference]: Finished difference Result 1714 states and 4478 transitions. [2021-01-20 21:27:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:27:11,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2021-01-20 21:27:11,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:11,085 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:11,085 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 4478 transitions. Word has length 36 [2021-01-20 21:27:11,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:11,087 INFO L481 AbstractCegarLoop]: Abstraction has 1714 states and 4478 transitions. [2021-01-20 21:27:11,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-01-20 21:27:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 4478 transitions. [2021-01-20 21:27:11,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-20 21:27:11,095 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:11,095 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:27:11,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:27:11,096 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:11,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:11,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1562684454, now seen corresponding path program 1 times [2021-01-20 21:27:11,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:11,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633825506] [2021-01-20 21:27:11,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:11,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633825506] [2021-01-20 21:27:11,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:11,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:27:11,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693847981] [2021-01-20 21:27:11,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:27:11,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:11,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:27:11,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:27:11,294 INFO L87 Difference]: Start difference. First operand 1714 states and 4478 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-01-20 21:27:11,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:11,511 INFO L93 Difference]: Finished difference Result 1115 states and 2789 transitions. [2021-01-20 21:27:11,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:27:11,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2021-01-20 21:27:11,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:11,514 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:11,514 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 2789 transitions. Word has length 38 [2021-01-20 21:27:11,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:11,515 INFO L481 AbstractCegarLoop]: Abstraction has 1115 states and 2789 transitions. [2021-01-20 21:27:11,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2021-01-20 21:27:11,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 2789 transitions. [2021-01-20 21:27:11,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-01-20 21:27:11,519 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:11,519 INFO L504 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] [2021-01-20 21:27:11,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:27:11,520 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:11,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:11,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1629268999, now seen corresponding path program 1 times [2021-01-20 21:27:11,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:11,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670245348] [2021-01-20 21:27:11,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:11,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670245348] [2021-01-20 21:27:11,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:11,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:27:11,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219285309] [2021-01-20 21:27:11,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:27:11,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:11,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:27:11,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:27:11,676 INFO L87 Difference]: Start difference. First operand 1115 states and 2789 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-01-20 21:27:11,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:11,879 INFO L93 Difference]: Finished difference Result 1927 states and 4735 transitions. [2021-01-20 21:27:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:27:11,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2021-01-20 21:27:11,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:11,882 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:11,882 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 4735 transitions. Word has length 40 [2021-01-20 21:27:11,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:11,882 INFO L481 AbstractCegarLoop]: Abstraction has 1927 states and 4735 transitions. [2021-01-20 21:27:11,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-01-20 21:27:11,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 4735 transitions. [2021-01-20 21:27:11,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-01-20 21:27:11,887 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:11,888 INFO L504 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] [2021-01-20 21:27:11,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:27:11,888 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:11,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:11,889 INFO L82 PathProgramCache]: Analyzing trace with hash 252127285, now seen corresponding path program 1 times [2021-01-20 21:27:11,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:11,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486614423] [2021-01-20 21:27:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:12,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486614423] [2021-01-20 21:27:12,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:12,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:27:12,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884503552] [2021-01-20 21:27:12,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:27:12,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:12,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:27:12,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:27:12,088 INFO L87 Difference]: Start difference. First operand 1927 states and 4735 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2021-01-20 21:27:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:12,336 INFO L93 Difference]: Finished difference Result 1144 states and 2710 transitions. [2021-01-20 21:27:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:27:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 40 [2021-01-20 21:27:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:12,338 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:27:12,338 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 2710 transitions. Word has length 40 [2021-01-20 21:27:12,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:12,339 INFO L481 AbstractCegarLoop]: Abstraction has 1144 states and 2710 transitions. [2021-01-20 21:27:12,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2021-01-20 21:27:12,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 2710 transitions. [2021-01-20 21:27:12,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 21:27:12,342 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:27:12,342 INFO L504 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] [2021-01-20 21:27:12,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:27:12,343 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:27:12,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:27:12,344 INFO L82 PathProgramCache]: Analyzing trace with hash -163535177, now seen corresponding path program 1 times [2021-01-20 21:27:12,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:27:12,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044753737] [2021-01-20 21:27:12,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:27:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:27:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:27:12,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044753737] [2021-01-20 21:27:12,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:27:12,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:27:12,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207691409] [2021-01-20 21:27:12,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:27:12,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:27:12,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:27:12,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:27:12,469 INFO L87 Difference]: Start difference. First operand 1144 states and 2710 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-20 21:27:12,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:27:12,605 INFO L93 Difference]: Finished difference Result 1500 states and 3539 transitions. [2021-01-20 21:27:12,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:27:12,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2021-01-20 21:27:12,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:27:12,606 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:27:12,606 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 3539 transitions. Word has length 44 [2021-01-20 21:27:12,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:27:12,607 INFO L481 AbstractCegarLoop]: Abstraction has 1500 states and 3539 transitions. [2021-01-20 21:27:12,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-20 21:27:12,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 3539 transitions. [2021-01-20 21:27:12,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:27:12,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:27:12,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:27:12 BasicIcfg [2021-01-20 21:27:12,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:27:12,619 INFO L168 Benchmark]: Toolchain (without parser) took 3831.89 ms. Allocated memory is still 302.0 MB. Free memory was 275.9 MB in the beginning and 210.6 MB in the end (delta: 65.3 MB). Peak memory consumption was 66.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:12,620 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 302.0 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:27:12,621 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.64 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 276.8 MB in the end (delta: -991.1 kB). Peak memory consumption was 29.9 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:12,621 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.30 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 274.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:12,622 INFO L168 Benchmark]: Boogie Preprocessor took 29.46 ms. Allocated memory is still 302.0 MB. Free memory was 274.7 MB in the beginning and 273.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:12,623 INFO L168 Benchmark]: RCFGBuilder took 542.45 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 252.7 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:12,624 INFO L168 Benchmark]: TraceAbstraction took 2490.39 ms. Allocated memory is still 302.0 MB. Free memory was 252.7 MB in the beginning and 210.6 MB in the end (delta: 42.1 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:27:12,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 302.0 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 712.64 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 276.8 MB in the end (delta: -991.1 kB). Peak memory consumption was 29.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.30 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 274.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.46 ms. Allocated memory is still 302.0 MB. Free memory was 274.7 MB in the beginning and 273.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 542.45 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 252.7 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2490.39 ms. Allocated memory is still 302.0 MB. Free memory was 252.7 MB in the beginning and 210.6 MB in the end (delta: 42.1 MB). Peak memory consumption was 41.0 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 3 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 415 SDtfs, 604 SDslu, 1432 SDs, 0 SdLazy, 166 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1927occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 19259 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...