/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:09:58,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:09:58,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:09:58,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:09:58,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:09:58,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:09:58,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:09:58,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:09:58,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:09:58,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:09:58,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:09:58,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:09:58,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:09:58,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:09:58,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:09:58,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:09:58,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:09:58,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:09:58,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:09:58,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:09:58,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:09:58,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:09:58,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:09:58,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:09:58,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 23:09:58,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:09:58,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:09:58,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:09:58,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:09:58,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:09:58,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:09:58,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:09:58,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:09:58,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:09:58,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:09:58,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:09:58,096 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:09:58,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:09:58,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:09:58,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:09:58,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:09:58,120 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:09:58,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:09:58,120 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:09:58,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:09:58,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:09:58,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:09:58,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:09:58,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:09:58,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:09:58,121 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:09:58,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:09:58,122 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:09:58,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:09:58,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:09:58,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:09:58,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:09:58,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:09:58,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:09:58,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:09:58,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:09:58,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:09:58,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:09:58,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:09:58,124 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:09:58,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:09:58,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:09:58,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:09:58,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:09:58,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:09:58,444 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:09:58,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-10-21 23:09:58,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c38593a38/00ccc76461764003bb2283771a400a0d/FLAG7e426b39b [2020-10-21 23:09:58,980 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:09:58,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-10-21 23:09:59,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c38593a38/00ccc76461764003bb2283771a400a0d/FLAG7e426b39b [2020-10-21 23:09:59,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c38593a38/00ccc76461764003bb2283771a400a0d [2020-10-21 23:09:59,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:09:59,350 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:09:59,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:09:59,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:09:59,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:09:59,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:09:59" (1/1) ... [2020-10-21 23:09:59,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd1b7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:09:59, skipping insertion in model container [2020-10-21 23:09:59,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:09:59" (1/1) ... [2020-10-21 23:09:59,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:09:59,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:09:59,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:10:00,004 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:10:00,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:10:00,122 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:10:00,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00 WrapperNode [2020-10-21 23:10:00,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:10:00,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:10:00,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:10:00,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:10:00,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (1/1) ... [2020-10-21 23:10:00,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (1/1) ... [2020-10-21 23:10:00,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:10:00,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:10:00,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:10:00,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:10:00,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (1/1) ... [2020-10-21 23:10:00,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (1/1) ... [2020-10-21 23:10:00,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (1/1) ... [2020-10-21 23:10:00,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (1/1) ... [2020-10-21 23:10:00,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (1/1) ... [2020-10-21 23:10:00,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (1/1) ... [2020-10-21 23:10:00,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (1/1) ... [2020-10-21 23:10:00,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:10:00,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:10:00,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:10:00,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:10:00,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (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 [2020-10-21 23:10:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-21 23:10:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-21 23:10:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-21 23:10:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-21 23:10:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:10:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:10:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:10:00,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:10:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:10:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:10:00,283 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:10:00,668 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:10:00,669 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-21 23:10:00,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:10:00 BoogieIcfgContainer [2020-10-21 23:10:00,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:10:00,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:10:00,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:10:00,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:10:00,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:09:59" (1/3) ... [2020-10-21 23:10:00,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd375b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:10:00, skipping insertion in model container [2020-10-21 23:10:00,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:00" (2/3) ... [2020-10-21 23:10:00,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd375b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:10:00, skipping insertion in model container [2020-10-21 23:10:00,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:10:00" (3/3) ... [2020-10-21 23:10:00,681 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2020-10-21 23:10:00,693 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:10:00,693 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:10:00,701 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:10:00,702 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:10:00,735 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,735 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,735 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,736 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,737 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,737 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,737 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,738 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,738 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,740 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,741 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,741 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,741 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,742 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,742 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,742 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,743 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,743 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,743 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,744 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,744 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,745 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,745 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,746 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,746 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,750 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,751 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,751 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,751 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,752 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,752 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,752 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,752 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,766 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,766 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,766 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,767 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,767 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:00,775 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:10:00,786 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 23:10:00,804 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:10:00,805 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:10:00,805 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:10:00,805 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:10:00,805 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:10:00,806 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:10:00,806 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:10:00,806 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:10:00,819 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:10:00,819 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 70 transitions, 150 flow [2020-10-21 23:10:00,822 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 70 transitions, 150 flow [2020-10-21 23:10:00,823 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 150 flow [2020-10-21 23:10:00,871 INFO L129 PetriNetUnfolder]: 5/80 cut-off events. [2020-10-21 23:10:00,871 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:10:00,877 INFO L80 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 80 events. 5/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 59. Up to 4 conditions per place. [2020-10-21 23:10:00,880 INFO L116 LiptonReduction]: Number of co-enabled transitions 942 [2020-10-21 23:10:02,164 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-10-21 23:10:02,420 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-21 23:10:02,833 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2020-10-21 23:10:02,975 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-21 23:10:02,980 INFO L131 LiptonReduction]: Checked pairs total: 919 [2020-10-21 23:10:02,980 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-10-21 23:10:02,993 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-10-21 23:10:03,003 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-10-21 23:10:03,005 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-21 23:10:03,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-21 23:10:03,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:10:03,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-21 23:10:03,013 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 23:10:03,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:10:03,018 INFO L82 PathProgramCache]: Analyzing trace with hash 283649, now seen corresponding path program 1 times [2020-10-21 23:10:03,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:10:03,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778805475] [2020-10-21 23:10:03,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:10:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:10:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:10:03,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778805475] [2020-10-21 23:10:03,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:10:03,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:10:03,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046534209] [2020-10-21 23:10:03,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:10:03,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:10:03,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:10:03,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:10:03,245 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-10-21 23:10:03,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:10:03,291 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-10-21 23:10:03,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:10:03,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-21 23:10:03,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:10:03,306 INFO L225 Difference]: With dead ends: 35 [2020-10-21 23:10:03,306 INFO L226 Difference]: Without dead ends: 31 [2020-10-21 23:10:03,308 INFO L677 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 [2020-10-21 23:10:03,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-21 23:10:03,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-21 23:10:03,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-21 23:10:03,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-10-21 23:10:03,356 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-10-21 23:10:03,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:10:03,356 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-10-21 23:10:03,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:10:03,357 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-10-21 23:10:03,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 23:10:03,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:10:03,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:10:03,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:10:03,362 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 23:10:03,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:10:03,363 INFO L82 PathProgramCache]: Analyzing trace with hash -68679350, now seen corresponding path program 1 times [2020-10-21 23:10:03,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:10:03,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653117756] [2020-10-21 23:10:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:10:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:10:03,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:10:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:10:03,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:10:03,490 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 23:10:03,491 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 23:10:03,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:10:03,493 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 23:10:03,497 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [246] [246] L714-->L715: Formula: (and (= ULTIMATE.start_assume_abort_if_not_~cond_Out422713191 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out422713191|) (< 0 ~n~0_In422713191) (= |ULTIMATE.start_assume_abort_if_not_#in~cond_Out422713191| 1) (= (store |#memory_int_In422713191| |ULTIMATE.start_main_~#t1~0.base_In422713191| (store (select |#memory_int_In422713191| |ULTIMATE.start_main_~#t1~0.base_In422713191|) |ULTIMATE.start_main_~#t1~0.offset_In422713191| 0)) |#memory_int_Out422713191|)) InVars {ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_In422713191|, #memory_int=|#memory_int_In422713191|, ~n~0=~n~0_In422713191, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_In422713191|} OutVars{ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_In422713191|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out422713191|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out422713191, #memory_int=|#memory_int_Out422713191|, ~n~0=~n~0_In422713191, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_In422713191|} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, #memory_int] because there is no mapped edge [2020-10-21 23:10:03,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:10:03 BasicIcfg [2020-10-21 23:10:03,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:10:03,526 INFO L168 Benchmark]: Toolchain (without parser) took 4181.70 ms. Allocated memory was 135.8 MB in the beginning and 257.4 MB in the end (delta: 121.6 MB). Free memory was 97.6 MB in the beginning and 219.0 MB in the end (delta: -121.4 MB). Peak memory consumption was 228.7 kB. Max. memory is 7.1 GB. [2020-10-21 23:10:03,527 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 117.3 MB in the beginning and 117.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 23:10:03,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.07 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 96.7 MB in the beginning and 156.7 MB in the end (delta: -60.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-10-21 23:10:03,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.59 ms. Allocated memory is still 199.2 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-10-21 23:10:03,530 INFO L168 Benchmark]: Boogie Preprocessor took 27.44 ms. Allocated memory is still 199.2 MB. Free memory was 154.6 MB in the beginning and 152.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-21 23:10:03,531 INFO L168 Benchmark]: RCFGBuilder took 470.17 ms. Allocated memory is still 199.2 MB. Free memory was 152.4 MB in the beginning and 130.0 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-21 23:10:03,532 INFO L168 Benchmark]: TraceAbstraction took 2851.41 ms. Allocated memory was 199.2 MB in the beginning and 257.4 MB in the end (delta: 58.2 MB). Free memory was 129.3 MB in the beginning and 219.0 MB in the end (delta: -89.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 23:10:03,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 117.3 MB in the beginning and 117.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 772.07 ms. Allocated memory was 135.8 MB in the beginning and 199.2 MB in the end (delta: 63.4 MB). Free memory was 96.7 MB in the beginning and 156.7 MB in the end (delta: -60.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.59 ms. Allocated memory is still 199.2 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.44 ms. Allocated memory is still 199.2 MB. Free memory was 154.6 MB in the beginning and 152.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 470.17 ms. Allocated memory is still 199.2 MB. Free memory was 152.4 MB in the beginning and 130.0 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2851.41 ms. Allocated memory was 199.2 MB in the beginning and 257.4 MB in the end (delta: 58.2 MB). Free memory was 129.3 MB in the beginning and 219.0 MB in the end (delta: -89.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 542 VarBasedMoverChecksPositive, 6 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 72 PlacesBefore, 18 PlacesAfterwards, 70 TransitionsBefore, 12 TransitionsAfterwards, 942 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 73 TotalNumberOfCompositions, 919 MoverChecksTotal - CounterExampleResult [Line: 683]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L697] 0 volatile int x; [L698] 0 volatile int n; [L710] 0 pthread_t t1, t2; [L711] 0 int i; [L712] 0 x = 0 [L713] 0 n = __VERIFIER_nondet_int() [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [n=1, x=0] [L716] 0 i = 0 VAL [n=1, x=0] [L716] COND TRUE 0 i < n [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [arg={0:0}, n=1, x=0] [L704] 2 int t; [L705] 2 t = x [L706] 2 x = t + 1 [L707] 2 return 0; [L689] COND TRUE 1 !(cond) [L683] COND FALSE 1 !(0) [L683] 1 __assert_fail ("0", "assert.h", 6, __extension__ __PRETTY_FUNCTION__) 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, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 7 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 9 SolverSat, 0 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, 0 StatesRemovedByMinimization, 0 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, 28 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...