/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/safe010_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:11:46,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:11:46,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:11:46,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:11:46,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:11:46,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:11:46,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:11:46,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:11:46,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:11:46,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:11:46,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:11:46,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:11:46,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:11:46,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:11:46,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:11:46,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:11:46,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:11:46,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:11:46,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:11:46,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:11:46,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:11:46,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:11:46,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:11:46,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:11:46,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:11:46,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:11:46,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:11:46,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:11:46,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:11:46,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:11:46,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:11:46,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:11:46,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:11:46,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:11:46,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:11:46,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:11:46,609 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 21:11:46,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:11:46,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:11:46,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:11:46,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:11:46,672 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:11:46,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:11:46,673 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:11:46,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:11:46,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:11:46,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:11:46,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:11:46,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:11:46,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:11:46,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:11:46,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:11:46,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:11:46,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:11:46,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:11:46,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:11:46,677 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:11:46,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:11:46,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:11:46,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:11:46,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:11:46,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:11:46,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:11:46,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:11:46,679 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:11:46,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:11:46,679 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:11:46,679 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:11:46,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:11:47,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:11:47,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:11:47,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:11:47,148 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:11:47,148 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:11:47,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i [2021-01-20 21:11:47,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82234830c/aedf2f4ff1794a14aece2d3228d2753d/FLAG58ff08483 [2021-01-20 21:11:48,058 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:11:48,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i [2021-01-20 21:11:48,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82234830c/aedf2f4ff1794a14aece2d3228d2753d/FLAG58ff08483 [2021-01-20 21:11:48,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82234830c/aedf2f4ff1794a14aece2d3228d2753d [2021-01-20 21:11:48,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:11:48,276 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:11:48,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:11:48,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:11:48,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:11:48,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:11:48" (1/1) ... [2021-01-20 21:11:48,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e7c92ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:48, skipping insertion in model container [2021-01-20 21:11:48,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:11:48" (1/1) ... [2021-01-20 21:11:48,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:11:48,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:11:48,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:11:48,813 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:11:48,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:11:49,088 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:11:49,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49 WrapperNode [2021-01-20 21:11:49,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:11:49,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:11:49,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:11:49,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:11:49,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (1/1) ... [2021-01-20 21:11:49,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (1/1) ... [2021-01-20 21:11:49,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:11:49,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:11:49,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:11:49,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:11:49,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (1/1) ... [2021-01-20 21:11:49,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (1/1) ... [2021-01-20 21:11:49,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (1/1) ... [2021-01-20 21:11:49,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (1/1) ... [2021-01-20 21:11:49,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (1/1) ... [2021-01-20 21:11:49,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (1/1) ... [2021-01-20 21:11:49,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (1/1) ... [2021-01-20 21:11:49,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:11:49,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:11:49,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:11:49,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:11:49,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (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 21:11:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:11:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:11:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:11:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:11:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:11:49,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:11:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:11:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:11:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:11:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:11:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:11:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:11:49,290 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 21:11:49,758 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:11:49,759 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:11:49,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:11:49 BoogieIcfgContainer [2021-01-20 21:11:49,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:11:49,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:11:49,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:11:49,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:11:49,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:11:48" (1/3) ... [2021-01-20 21:11:49,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d55edab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:11:49, skipping insertion in model container [2021-01-20 21:11:49,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:11:49" (2/3) ... [2021-01-20 21:11:49,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d55edab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:11:49, skipping insertion in model container [2021-01-20 21:11:49,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:11:49" (3/3) ... [2021-01-20 21:11:49,772 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.opt.i [2021-01-20 21:11:49,789 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:11:49,789 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:11:49,794 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:11:49,795 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:11:49,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,832 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,833 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,834 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,834 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,834 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,834 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,835 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,838 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,838 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,847 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,847 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:11:49,850 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:11:49,865 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 21:11:49,889 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:11:49,889 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:11:49,889 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:11:49,890 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:11:49,890 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:11:49,890 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:11:49,890 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:11:49,890 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:11:49,901 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2021-01-20 21:11:49,999 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 21:11:50,006 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 21:11:50,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-01-20 21:11:50,043 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:50,044 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 21:11:50,044 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:50,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:50,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2018155564, now seen corresponding path program 1 times [2021-01-20 21:11:50,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:50,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884849877] [2021-01-20 21:11:50,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:50,500 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 21:11:50,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884849877] [2021-01-20 21:11:50,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:50,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:11:50,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716262789] [2021-01-20 21:11:50,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:11:50,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:50,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:11:50,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:11:50,543 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 21:11:50,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:50,939 INFO L93 Difference]: Finished difference Result 1586 states and 4134 transitions. [2021-01-20 21:11:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:11:50,942 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 21:11:50,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:50,948 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:11:50,949 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 4134 transitions. Word has length 36 [2021-01-20 21:11:50,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:50,956 INFO L481 AbstractCegarLoop]: Abstraction has 1586 states and 4134 transitions. [2021-01-20 21:11:50,956 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 21:11:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 4134 transitions. [2021-01-20 21:11:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-20 21:11:50,970 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:50,970 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 21:11:50,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:11:50,971 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:50,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:50,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1725393197, now seen corresponding path program 1 times [2021-01-20 21:11:50,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:50,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4773136] [2021-01-20 21:11:50,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:51,299 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 21:11:51,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4773136] [2021-01-20 21:11:51,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:51,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:11:51,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12451039] [2021-01-20 21:11:51,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:11:51,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:51,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:11:51,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:11:51,304 INFO L87 Difference]: Start difference. First operand 1586 states and 4134 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 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 21:11:51,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:51,815 INFO L93 Difference]: Finished difference Result 2166 states and 5558 transitions. [2021-01-20 21:11:51,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:11:51,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 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 21:11:51,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:51,825 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:11:51,825 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 5558 transitions. Word has length 38 [2021-01-20 21:11:51,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:51,832 INFO L481 AbstractCegarLoop]: Abstraction has 2166 states and 5558 transitions. [2021-01-20 21:11:51,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 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 21:11:51,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 5558 transitions. [2021-01-20 21:11:51,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-20 21:11:51,842 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:51,843 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] [2021-01-20 21:11:51,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:11:51,843 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:51,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:51,847 INFO L82 PathProgramCache]: Analyzing trace with hash -2141062468, now seen corresponding path program 1 times [2021-01-20 21:11:51,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:51,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084676345] [2021-01-20 21:11:51,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:52,126 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 21:11:52,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084676345] [2021-01-20 21:11:52,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:52,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:11:52,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988953531] [2021-01-20 21:11:52,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:11:52,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:52,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:11:52,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:11:52,130 INFO L87 Difference]: Start difference. First operand 2166 states and 5558 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 21:11:52,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:52,386 INFO L93 Difference]: Finished difference Result 1699 states and 4187 transitions. [2021-01-20 21:11:52,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:11:52,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2021-01-20 21:11:52,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:52,389 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 21:11:52,389 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 4187 transitions. Word has length 41 [2021-01-20 21:11:52,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:52,390 INFO L481 AbstractCegarLoop]: Abstraction has 1699 states and 4187 transitions. [2021-01-20 21:11:52,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 21:11:52,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 4187 transitions. [2021-01-20 21:11:52,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 21:11:52,395 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:52,396 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] [2021-01-20 21:11:52,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:11:52,396 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:52,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:52,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1222811651, now seen corresponding path program 1 times [2021-01-20 21:11:52,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:52,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744764793] [2021-01-20 21:11:52,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:52,665 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 21:11:52,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744764793] [2021-01-20 21:11:52,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:52,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:11:52,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627075790] [2021-01-20 21:11:52,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:11:52,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:52,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:11:52,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:11:52,669 INFO L87 Difference]: Start difference. First operand 1699 states and 4187 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 21:11:53,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:53,041 INFO L93 Difference]: Finished difference Result 1144 states and 2710 transitions. [2021-01-20 21:11:53,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:11:53,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 42 [2021-01-20 21:11:53,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:53,043 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:11:53,043 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 2710 transitions. Word has length 42 [2021-01-20 21:11:53,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:53,044 INFO L481 AbstractCegarLoop]: Abstraction has 1144 states and 2710 transitions. [2021-01-20 21:11:53,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 21:11:53,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 2710 transitions. [2021-01-20 21:11:53,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 21:11:53,048 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:11:53,048 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 21:11:53,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:11:53,048 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:11:53,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:11:53,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1089745218, now seen corresponding path program 1 times [2021-01-20 21:11:53,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:11:53,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167834649] [2021-01-20 21:11:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:11:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:11:53,201 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 21:11:53,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167834649] [2021-01-20 21:11:53,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:11:53,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:11:53,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533880188] [2021-01-20 21:11:53,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:11:53,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:11:53,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:11:53,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:11:53,205 INFO L87 Difference]: Start difference. First operand 1144 states and 2710 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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 21:11:53,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:11:53,340 INFO L93 Difference]: Finished difference Result 1500 states and 3539 transitions. [2021-01-20 21:11:53,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 21:11:53,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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 21:11:53,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:11:53,342 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-20 21:11:53,342 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 3539 transitions. Word has length 44 [2021-01-20 21:11:53,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:11:53,343 INFO L481 AbstractCegarLoop]: Abstraction has 1500 states and 3539 transitions. [2021-01-20 21:11:53,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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 21:11:53,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 3539 transitions. [2021-01-20 21:11:53,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:11:53,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:11:53,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:11:53 BasicIcfg [2021-01-20 21:11:53,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:11:53,357 INFO L168 Benchmark]: Toolchain (without parser) took 5079.20 ms. Allocated memory was 304.1 MB in the beginning and 364.9 MB in the end (delta: 60.8 MB). Free memory was 278.1 MB in the beginning and 265.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:53,358 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 304.1 MB. Free memory was 272.7 MB in the beginning and 272.6 MB in the end (delta: 84.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:11:53,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.87 ms. Allocated memory is still 304.1 MB. Free memory was 277.9 MB in the beginning and 279.9 MB in the end (delta: -2.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:53,362 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.02 ms. Allocated memory is still 304.1 MB. Free memory was 279.9 MB in the beginning and 277.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:11:53,369 INFO L168 Benchmark]: Boogie Preprocessor took 38.07 ms. Allocated memory is still 304.1 MB. Free memory was 277.8 MB in the beginning and 276.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:53,371 INFO L168 Benchmark]: RCFGBuilder took 574.34 ms. Allocated memory is still 304.1 MB. Free memory was 276.8 MB in the beginning and 255.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:53,372 INFO L168 Benchmark]: TraceAbstraction took 3589.76 ms. Allocated memory was 304.1 MB in the beginning and 364.9 MB in the end (delta: 60.8 MB). Free memory was 255.8 MB in the beginning and 265.7 MB in the end (delta: -9.9 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:11:53,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 304.1 MB. Free memory was 272.7 MB in the beginning and 272.6 MB in the end (delta: 84.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 811.87 ms. Allocated memory is still 304.1 MB. Free memory was 277.9 MB in the beginning and 279.9 MB in the end (delta: -2.0 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.02 ms. Allocated memory is still 304.1 MB. Free memory was 279.9 MB in the beginning and 277.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 38.07 ms. Allocated memory is still 304.1 MB. Free memory was 277.8 MB in the beginning and 276.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 574.34 ms. Allocated memory is still 304.1 MB. Free memory was 276.8 MB in the beginning and 255.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3589.76 ms. Allocated memory was 304.1 MB in the beginning and 364.9 MB in the end (delta: 60.8 MB). Free memory was 255.8 MB in the beginning and 265.7 MB in the end (delta: -9.9 MB). Peak memory consumption was 52.0 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: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 389 SDtfs, 677 SDslu, 1325 SDs, 0 SdLazy, 171 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2166occurred in iteration=2, 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, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 20970 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...