/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 18:26:25,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 18:26:25,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 18:26:25,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 18:26:25,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 18:26:25,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 18:26:25,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 18:26:25,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 18:26:25,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 18:26:25,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 18:26:25,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 18:26:25,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 18:26:25,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 18:26:25,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 18:26:25,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 18:26:25,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 18:26:25,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 18:26:25,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 18:26:25,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 18:26:25,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 18:26:25,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 18:26:25,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 18:26:25,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 18:26:25,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 18:26:25,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 18:26:25,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 18:26:25,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 18:26:25,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 18:26:25,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 18:26:25,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 18:26:25,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 18:26:25,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 18:26:25,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 18:26:25,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 18:26:25,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 18:26:25,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 18:26:25,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 18:26:25,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 18:26:25,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 18:26:25,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 18:26:25,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 18:26:25,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 18:26:25,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 18:26:25,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 18:26:25,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 18:26:25,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 18:26:25,650 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 18:26:25,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 18:26:25,651 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 18:26:25,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 18:26:25,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 18:26:25,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 18:26:25,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 18:26:25,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 18:26:25,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 18:26:25,656 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 18:26:25,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 18:26:25,657 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 18:26:25,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 18:26:25,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 18:26:25,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 18:26:25,657 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 18:26:25,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 18:26:25,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:26:25,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 18:26:25,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 18:26:25,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 18:26:25,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 18:26:25,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 18:26:25,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 18:26:25,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 18:26:25,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 18:26:25,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 18:26:25,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 18:26:25,949 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 18:26:25,950 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 18:26:25,951 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 18:26:25,951 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-04-17 18:26:26,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f336b13/c352729030074820b795f4089b10fd03/FLAG7f5a0fb39 [2020-04-17 18:26:26,600 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 18:26:26,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-04-17 18:26:26,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f336b13/c352729030074820b795f4089b10fd03/FLAG7f5a0fb39 [2020-04-17 18:26:26,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28f336b13/c352729030074820b795f4089b10fd03 [2020-04-17 18:26:26,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 18:26:26,911 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 18:26:26,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 18:26:26,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 18:26:26,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 18:26:26,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:26:26" (1/1) ... [2020-04-17 18:26:26,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2c3685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:26, skipping insertion in model container [2020-04-17 18:26:26,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:26:26" (1/1) ... [2020-04-17 18:26:26,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 18:26:26,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 18:26:27,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:26:27,516 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 18:26:27,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:26:27,656 INFO L208 MainTranslator]: Completed translation [2020-04-17 18:26:27,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27 WrapperNode [2020-04-17 18:26:27,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 18:26:27,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 18:26:27,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 18:26:27,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 18:26:27,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (1/1) ... [2020-04-17 18:26:27,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (1/1) ... [2020-04-17 18:26:27,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 18:26:27,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 18:26:27,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 18:26:27,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 18:26:27,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (1/1) ... [2020-04-17 18:26:27,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (1/1) ... [2020-04-17 18:26:27,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (1/1) ... [2020-04-17 18:26:27,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (1/1) ... [2020-04-17 18:26:27,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (1/1) ... [2020-04-17 18:26:27,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (1/1) ... [2020-04-17 18:26:27,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (1/1) ... [2020-04-17 18:26:27,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 18:26:27,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 18:26:27,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 18:26:27,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 18:26:27,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:26:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-04-17 18:26:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-04-17 18:26:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-17 18:26:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-17 18:26:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 18:26:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 18:26:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 18:26:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 18:26:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 18:26:27,820 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 18:26:28,192 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 18:26:28,192 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-04-17 18:26:28,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:26:28 BoogieIcfgContainer [2020-04-17 18:26:28,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 18:26:28,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 18:26:28,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 18:26:28,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 18:26:28,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:26:26" (1/3) ... [2020-04-17 18:26:28,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab87611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:26:28, skipping insertion in model container [2020-04-17 18:26:28,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:26:27" (2/3) ... [2020-04-17 18:26:28,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab87611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:26:28, skipping insertion in model container [2020-04-17 18:26:28,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:26:28" (3/3) ... [2020-04-17 18:26:28,207 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2020-04-17 18:26:28,220 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 18:26:28,221 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 18:26:28,227 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 18:26:28,228 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 18:26:28,251 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,252 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,252 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,252 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,253 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,253 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,253 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,254 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,254 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,255 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,255 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,255 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,256 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,256 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,256 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,257 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,257 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,257 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,258 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,258 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,262 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,263 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,263 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,264 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,264 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,264 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,286 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,286 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,286 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,287 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,287 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:26:28,301 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 18:26:28,318 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:26:28,318 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:26:28,318 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:26:28,318 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:26:28,318 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:26:28,318 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:26:28,318 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:26:28,319 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:26:28,333 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 132 flow [2020-04-17 18:26:28,335 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 132 flow [2020-04-17 18:26:28,377 INFO L129 PetriNetUnfolder]: 4/71 cut-off events. [2020-04-17 18:26:28,377 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:26:28,383 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 71 events. 4/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2020-04-17 18:26:28,386 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 132 flow [2020-04-17 18:26:28,407 INFO L129 PetriNetUnfolder]: 4/71 cut-off events. [2020-04-17 18:26:28,408 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:26:28,409 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 71 events. 4/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2020-04-17 18:26:28,412 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 692 [2020-04-17 18:26:28,413 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:26:29,811 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-04-17 18:26:30,006 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-04-17 18:26:30,513 WARN L192 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-04-17 18:26:30,603 INFO L206 etLargeBlockEncoding]: Checked pairs total: 529 [2020-04-17 18:26:30,603 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-04-17 18:26:30,607 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-04-17 18:26:30,617 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-04-17 18:26:30,619 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-04-17 18:26:30,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-04-17 18:26:30,626 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:26:30,627 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-04-17 18:26:30,627 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 18:26:30,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:26:30,633 INFO L82 PathProgramCache]: Analyzing trace with hash 245288, now seen corresponding path program 1 times [2020-04-17 18:26:30,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:26:30,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014765595] [2020-04-17 18:26:30,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:26:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:26:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:26:30,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014765595] [2020-04-17 18:26:30,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:26:30,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 18:26:30,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126114551] [2020-04-17 18:26:30,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:26:30,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:26:30,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:26:30,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:26:30,861 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-04-17 18:26:30,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:26:30,903 INFO L93 Difference]: Finished difference Result 40 states and 63 transitions. [2020-04-17 18:26:30,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:26:30,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-04-17 18:26:30,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:26:30,915 INFO L225 Difference]: With dead ends: 40 [2020-04-17 18:26:30,916 INFO L226 Difference]: Without dead ends: 35 [2020-04-17 18:26:30,917 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:26:30,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-04-17 18:26:30,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2020-04-17 18:26:30,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-04-17 18:26:30,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-04-17 18:26:30,953 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-04-17 18:26:30,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:26:30,953 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-04-17 18:26:30,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:26:30,953 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-04-17 18:26:30,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-17 18:26:30,954 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:26:30,954 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:26:30,955 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 18:26:30,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:26:30,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1115005406, now seen corresponding path program 1 times [2020-04-17 18:26:30,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:26:30,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843662020] [2020-04-17 18:26:30,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:26:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 18:26:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 18:26:31,048 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-17 18:26:31,048 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 18:26:31,050 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-04-17 18:26:31,053 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [219] [219] ULTIMATE.startENTRY-->L704: Formula: (let ((.cse1 (store |#valid_In-136853930| 0 0))) (let ((.cse0 (store .cse1 |ULTIMATE.start_main_~#t1~0.base_Out-136853930| 1))) (and (= (store .cse0 |ULTIMATE.start_main_~#t2~0.base_Out-136853930| 1) |#valid_Out-136853930|) (= 0 |#NULL.offset_Out-136853930|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond_Out-136853930| 1) (<= ~n~0_Out-136853930 2147483647) (< |#StackHeapBarrier_In-136853930| |ULTIMATE.start_main_~#t1~0.base_Out-136853930|) (= |ULTIMATE.start_#in~argc_In-136853930| |ULTIMATE.start_main_#in~argc_Out-136853930|) (= |ULTIMATE.start_main_#in~argv.base_Out-136853930| ULTIMATE.start_main_~argv.base_Out-136853930) (= |#memory_int_Out-136853930| (store |#memory_int_In-136853930| |ULTIMATE.start_main_~#t1~0.base_Out-136853930| (store (select |#memory_int_In-136853930| |ULTIMATE.start_main_~#t1~0.base_Out-136853930|) |ULTIMATE.start_main_~#t1~0.offset_Out-136853930| 0))) (= |ULTIMATE.start_main_#in~argv.base_Out-136853930| |ULTIMATE.start_#in~argv.base_In-136853930|) (= ULTIMATE.start_main_~argv.offset_Out-136853930 |ULTIMATE.start_main_#in~argv.offset_Out-136853930|) (< 0 ~n~0_Out-136853930) (= (select .cse0 |ULTIMATE.start_main_~#t2~0.base_Out-136853930|) 0) (= |ULTIMATE.start_#in~argv.offset_In-136853930| |ULTIMATE.start_main_#in~argv.offset_Out-136853930|) (= ULTIMATE.start_assume_abort_if_not_~cond_Out-136853930 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out-136853930|) (= (select .cse1 |ULTIMATE.start_main_~#t1~0.base_Out-136853930|) 0) (= 0 ~x~0_Out-136853930) (= |#NULL.base_Out-136853930| 0) (< |#StackHeapBarrier_In-136853930| |ULTIMATE.start_main_~#t2~0.base_Out-136853930|) (= |ULTIMATE.start_main_#in~argc_Out-136853930| ULTIMATE.start_main_~argc_Out-136853930) (= 0 |ULTIMATE.start_main_~#t1~0.offset_Out-136853930|) (< 0 |#StackHeapBarrier_In-136853930|) (= 0 |ULTIMATE.start_main_~#t2~0.offset_Out-136853930|) (= (store (store |#length_In-136853930| |ULTIMATE.start_main_~#t1~0.base_Out-136853930| 4) |ULTIMATE.start_main_~#t2~0.base_Out-136853930| 4) |#length_Out-136853930|)))) InVars {#StackHeapBarrier=|#StackHeapBarrier_In-136853930|, #valid=|#valid_In-136853930|, #memory_int=|#memory_int_In-136853930|, #length=|#length_In-136853930|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In-136853930|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In-136853930|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In-136853930|} OutVars{ULTIMATE.start_main_~argv.offset=ULTIMATE.start_main_~argv.offset_Out-136853930, ULTIMATE.start_main_#t~nondet5=|ULTIMATE.start_main_#t~nondet5_Out-136853930|, ULTIMATE.start_main_#t~nondet2=|ULTIMATE.start_main_#t~nondet2_Out-136853930|, ULTIMATE.start_main_#t~nondet3=|ULTIMATE.start_main_#t~nondet3_Out-136853930|, #NULL.offset=|#NULL.offset_Out-136853930|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In-136853930|, ULTIMATE.start_main_#t~post4=|ULTIMATE.start_main_#t~post4_Out-136853930|, ULTIMATE.start_main_~argv.base=ULTIMATE.start_main_~argv.base_Out-136853930, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-136853930, ULTIMATE.start_main_~argc=ULTIMATE.start_main_~argc_Out-136853930, #length=|#length_Out-136853930|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In-136853930|, ULTIMATE.start_main_~#t2~0.base=|ULTIMATE.start_main_~#t2~0.base_Out-136853930|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In-136853930|, ULTIMATE.start_main_#in~argv.base=|ULTIMATE.start_main_#in~argv.base_Out-136853930|, ULTIMATE.start_main_#in~argv.offset=|ULTIMATE.start_main_#in~argv.offset_Out-136853930|, ULTIMATE.start_main_~#t2~0.offset=|ULTIMATE.start_main_~#t2~0.offset_Out-136853930|, ULTIMATE.start_main_~i~0=ULTIMATE.start_main_~i~0_Out-136853930, #NULL.base=|#NULL.base_Out-136853930|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out-136853930|, ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_Out-136853930|, #StackHeapBarrier=|#StackHeapBarrier_In-136853930|, ULTIMATE.start_main_#res=|ULTIMATE.start_main_#res_Out-136853930|, #valid=|#valid_Out-136853930|, ULTIMATE.start_main_#in~argc=|ULTIMATE.start_main_#in~argc_Out-136853930|, #memory_int=|#memory_int_Out-136853930|, ~n~0=~n~0_Out-136853930, ~x~0=~x~0_Out-136853930, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_Out-136853930|} AuxVars[] AssignedVars[ULTIMATE.start_main_~argv.offset, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, #NULL.offset, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~argv.base, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_~argc, #length, ULTIMATE.start_main_~#t2~0.base, ULTIMATE.start_main_#in~argv.base, ULTIMATE.start_main_#in~argv.offset, ULTIMATE.start_main_~#t2~0.offset, ULTIMATE.start_main_~i~0, #NULL.base, ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_main_~#t1~0.base, ULTIMATE.start_main_#res, #valid, ULTIMATE.start_main_#in~argc, #memory_int, ~n~0, ~x~0, ULTIMATE.start_main_~#t1~0.offset] because there is no mapped edge [2020-04-17 18:26:31,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 06:26:31 BasicIcfg [2020-04-17 18:26:31,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 18:26:31,092 INFO L168 Benchmark]: Toolchain (without parser) took 4202.55 ms. Allocated memory was 145.8 MB in the beginning and 247.5 MB in the end (delta: 101.7 MB). Free memory was 101.1 MB in the beginning and 215.6 MB in the end (delta: -114.6 MB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. [2020-04-17 18:26:31,093 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 18:26:31,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.84 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 160.8 MB in the end (delta: -61.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-04-17 18:26:31,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.26 ms. Allocated memory is still 203.4 MB. Free memory was 160.8 MB in the beginning and 158.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-17 18:26:31,096 INFO L168 Benchmark]: Boogie Preprocessor took 27.59 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 157.9 MB in the end (delta: 949.5 kB). Peak memory consumption was 949.5 kB. Max. memory is 7.1 GB. [2020-04-17 18:26:31,097 INFO L168 Benchmark]: RCFGBuilder took 451.64 ms. Allocated memory is still 203.4 MB. Free memory was 157.9 MB in the beginning and 137.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-04-17 18:26:31,098 INFO L168 Benchmark]: TraceAbstraction took 2892.76 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 136.6 MB in the beginning and 215.6 MB in the end (delta: -79.0 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2020-04-17 18:26:31,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.84 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 160.8 MB in the end (delta: -61.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.26 ms. Allocated memory is still 203.4 MB. Free memory was 160.8 MB in the beginning and 158.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.59 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 157.9 MB in the end (delta: 949.5 kB). Peak memory consumption was 949.5 kB. Max. memory is 7.1 GB. * RCFGBuilder took 451.64 ms. Allocated memory is still 203.4 MB. Free memory was 157.9 MB in the beginning and 137.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2892.76 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 136.6 MB in the beginning and 215.6 MB in the end (delta: -79.0 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.2s, 64 ProgramPointsBefore, 18 ProgramPointsAfterwards, 61 TransitionsBefore, 12 TransitionsAfterwards, 692 CoEnabledTransitionPairs, 7 FixpointIterations, 26 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 378 VarBasedMoverChecksPositive, 2 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 3 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 529 CheckedPairsTotal, 58 TotalNumberOfCompositions - CounterExampleResult [Line: 679]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L704] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L705] 0 i = 0 VAL [n=1, x=0] [L705] COND TRUE 0 i < n [L706] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L693] 2 int t; [L694] 2 t = x [L695] 2 x = t + 1 [L696] 2 return 0; [L678] COND TRUE 1 !(cond) [L679] 1 __VERIFIER_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 7 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 incorrect! Received shutdown request...