/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-12 00:18:07,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-12 00:18:07,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-12 00:18:07,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-12 00:18:07,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-12 00:18:07,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-12 00:18:07,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-12 00:18:07,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-12 00:18:07,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-12 00:18:07,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-12 00:18:07,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-12 00:18:07,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-12 00:18:07,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-12 00:18:07,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-12 00:18:07,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-12 00:18:07,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-12 00:18:07,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-12 00:18:07,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-12 00:18:07,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-12 00:18:07,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-12 00:18:07,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-12 00:18:07,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-12 00:18:07,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-12 00:18:07,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-12 00:18:07,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-12 00:18:07,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-12 00:18:07,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-12 00:18:07,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-12 00:18:07,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-12 00:18:07,683 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-12 00:18:07,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-12 00:18:07,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-12 00:18:07,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-12 00:18:07,686 INFO L138 SettingsManager]: * Use SBE=true [2020-09-12 00:18:07,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-12 00:18:07,687 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-12 00:18:07,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-12 00:18:07,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-12 00:18:07,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-12 00:18:07,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-12 00:18:07,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-12 00:18:07,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-12 00:18:07,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-12 00:18:07,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-12 00:18:07,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-12 00:18:07,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-12 00:18:07,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-12 00:18:07,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-12 00:18:07,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-12 00:18:07,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-12 00:18:07,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-12 00:18:07,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-12 00:18:07,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-12 00:18:07,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-12 00:18:07,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-12 00:18:07,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-12 00:18:07,693 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-12 00:18:07,693 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-12 00:18:07,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-12 00:18:07,693 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-12 00:18:08,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-12 00:18:08,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-12 00:18:08,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-12 00:18:08,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-12 00:18:08,152 INFO L275 PluginConnector]: CDTParser initialized [2020-09-12 00:18:08,154 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-09-12 00:18:08,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e7bc5bf7/6390520c7afd4606a4ba100f4e6922a6/FLAG2e298fcda [2020-09-12 00:18:08,809 INFO L306 CDTParser]: Found 1 translation units. [2020-09-12 00:18:08,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-lit/fkp2013_variant-2.i [2020-09-12 00:18:08,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e7bc5bf7/6390520c7afd4606a4ba100f4e6922a6/FLAG2e298fcda [2020-09-12 00:18:09,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e7bc5bf7/6390520c7afd4606a4ba100f4e6922a6 [2020-09-12 00:18:09,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-12 00:18:09,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-12 00:18:09,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-12 00:18:09,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-12 00:18:09,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-12 00:18:09,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6779c682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09, skipping insertion in model container [2020-09-12 00:18:09,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-12 00:18:09,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-12 00:18:09,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:18:09,735 INFO L203 MainTranslator]: Completed pre-run [2020-09-12 00:18:09,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:18:09,899 INFO L208 MainTranslator]: Completed translation [2020-09-12 00:18:09,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09 WrapperNode [2020-09-12 00:18:09,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-12 00:18:09,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-12 00:18:09,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-12 00:18:09,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-12 00:18:09,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-12 00:18:09,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-12 00:18:09,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-12 00:18:09,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-12 00:18:09,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (1/1) ... [2020-09-12 00:18:09,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-12 00:18:09,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-12 00:18:09,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-12 00:18:09,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-12 00:18:09,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-12 00:18:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-09-12 00:18:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-09-12 00:18:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-12 00:18:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-12 00:18:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-12 00:18:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-12 00:18:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-12 00:18:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-12 00:18:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-12 00:18:10,077 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-12 00:18:10,470 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-12 00:18:10,470 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-12 00:18:10,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:18:10 BoogieIcfgContainer [2020-09-12 00:18:10,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-12 00:18:10,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-12 00:18:10,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-12 00:18:10,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-12 00:18:10,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 12:18:09" (1/3) ... [2020-09-12 00:18:10,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cc2d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:18:10, skipping insertion in model container [2020-09-12 00:18:10,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:18:09" (2/3) ... [2020-09-12 00:18:10,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cc2d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:18:10, skipping insertion in model container [2020-09-12 00:18:10,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:18:10" (3/3) ... [2020-09-12 00:18:10,484 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2020-09-12 00:18:10,496 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-12 00:18:10,497 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-12 00:18:10,506 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-12 00:18:10,507 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-12 00:18:10,532 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,533 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,534 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,534 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,535 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,559 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,559 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,560 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,560 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,560 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:18:10,584 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-12 00:18:10,606 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-12 00:18:10,606 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-12 00:18:10,607 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-12 00:18:10,607 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-12 00:18:10,607 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-12 00:18:10,607 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-12 00:18:10,607 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-12 00:18:10,607 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-12 00:18:10,624 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 132 flow [2020-09-12 00:18:10,627 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 132 flow [2020-09-12 00:18:10,674 INFO L129 PetriNetUnfolder]: 4/71 cut-off events. [2020-09-12 00:18:10,674 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:18:10,681 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. [2020-09-12 00:18:10,684 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 132 flow [2020-09-12 00:18:10,707 INFO L129 PetriNetUnfolder]: 4/71 cut-off events. [2020-09-12 00:18:10,707 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:18:10,708 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. [2020-09-12 00:18:10,711 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 692 [2020-09-12 00:18:10,712 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-12 00:18:11,978 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-09-12 00:18:12,644 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2020-09-12 00:18:12,737 INFO L206 etLargeBlockEncoding]: Checked pairs total: 529 [2020-09-12 00:18:12,737 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-09-12 00:18:12,743 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-09-12 00:18:12,754 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-09-12 00:18:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-12 00:18:12,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-09-12 00:18:12,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:18:12,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-09-12 00:18:12,766 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-12 00:18:12,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:18:12,774 INFO L82 PathProgramCache]: Analyzing trace with hash 245288, now seen corresponding path program 1 times [2020-09-12 00:18:12,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:18:12,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132299584] [2020-09-12 00:18:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:18:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:18:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:18:13,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132299584] [2020-09-12 00:18:13,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:18:13,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-12 00:18:13,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1026539377] [2020-09-12 00:18:13,029 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:18:13,032 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:18:13,050 INFO L274 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-09-12 00:18:13,050 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:18:13,052 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:18:13,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-12 00:18:13,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:18:13,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-12 00:18:13,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-12 00:18:13,077 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-09-12 00:18:13,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:18:13,110 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-09-12 00:18:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-12 00:18:13,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-09-12 00:18:13,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:18:13,126 INFO L225 Difference]: With dead ends: 35 [2020-09-12 00:18:13,127 INFO L226 Difference]: Without dead ends: 31 [2020-09-12 00:18:13,128 INFO L675 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 [2020-09-12 00:18:13,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-12 00:18:13,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-12 00:18:13,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-12 00:18:13,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-09-12 00:18:13,178 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-09-12 00:18:13,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:18:13,178 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-09-12 00:18:13,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-12 00:18:13,179 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-09-12 00:18:13,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-12 00:18:13,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:18:13,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:18:13,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-12 00:18:13,181 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-12 00:18:13,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:18:13,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1115005406, now seen corresponding path program 1 times [2020-09-12 00:18:13,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:18:13,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255774056] [2020-09-12 00:18:13,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:18:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-12 00:18:13,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-12 00:18:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-12 00:18:13,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-12 00:18:13,312 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-12 00:18:13,313 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-12 00:18:13,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-12 00:18:13,315 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-12 00:18:13,320 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [219] [219] ULTIMATE.startENTRY-->L704: Formula: (let ((.cse0 (store |#valid_In1491414551| 0 0))) (let ((.cse1 (store .cse0 |ULTIMATE.start_main_~#t1~0.base_Out1491414551| 1))) (and (= (select .cse0 |ULTIMATE.start_main_~#t1~0.base_Out1491414551|) 0) (= |ULTIMATE.start_main_~#t2~0.offset_Out1491414551| 0) (= ULTIMATE.start_assume_abort_if_not_~cond_Out1491414551 |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1491414551|) (< 0 |#StackHeapBarrier_In1491414551|) (= |ULTIMATE.start_main_#in~argv.base_Out1491414551| ULTIMATE.start_main_~argv.base_Out1491414551) (= |ULTIMATE.start_assume_abort_if_not_#in~cond_Out1491414551| 1) (= |#NULL.offset_Out1491414551| 0) (= |ULTIMATE.start_main_~#t1~0.offset_Out1491414551| 0) (< 0 ~n~0_Out1491414551) (= (store (store |#length_In1491414551| |ULTIMATE.start_main_~#t1~0.base_Out1491414551| 4) |ULTIMATE.start_main_~#t2~0.base_Out1491414551| 4) |#length_Out1491414551|) (= |ULTIMATE.start_main_#in~argv.base_Out1491414551| |ULTIMATE.start_#in~argv.base_In1491414551|) (< |#StackHeapBarrier_In1491414551| |ULTIMATE.start_main_~#t1~0.base_Out1491414551|) (= |ULTIMATE.start_#in~argc_In1491414551| |ULTIMATE.start_main_#in~argc_Out1491414551|) (= |ULTIMATE.start_main_#in~argc_Out1491414551| ULTIMATE.start_main_~argc_Out1491414551) (<= ~n~0_Out1491414551 2147483647) (= ~x~0_Out1491414551 0) (= (select .cse1 |ULTIMATE.start_main_~#t2~0.base_Out1491414551|) 0) (= |#NULL.base_Out1491414551| 0) (= (store |#memory_int_In1491414551| |ULTIMATE.start_main_~#t1~0.base_Out1491414551| (store (select |#memory_int_In1491414551| |ULTIMATE.start_main_~#t1~0.base_Out1491414551|) |ULTIMATE.start_main_~#t1~0.offset_Out1491414551| 0)) |#memory_int_Out1491414551|) (= (store .cse1 |ULTIMATE.start_main_~#t2~0.base_Out1491414551| 1) |#valid_Out1491414551|) (= ULTIMATE.start_main_~argv.offset_Out1491414551 |ULTIMATE.start_main_#in~argv.offset_Out1491414551|) (< |#StackHeapBarrier_In1491414551| |ULTIMATE.start_main_~#t2~0.base_Out1491414551|) (= |ULTIMATE.start_#in~argv.offset_In1491414551| |ULTIMATE.start_main_#in~argv.offset_Out1491414551|)))) InVars {#StackHeapBarrier=|#StackHeapBarrier_In1491414551|, #valid=|#valid_In1491414551|, #memory_int=|#memory_int_In1491414551|, #length=|#length_In1491414551|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In1491414551|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In1491414551|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In1491414551|} OutVars{ULTIMATE.start_main_~argv.offset=ULTIMATE.start_main_~argv.offset_Out1491414551, ULTIMATE.start_main_#t~nondet5=|ULTIMATE.start_main_#t~nondet5_Out1491414551|, ULTIMATE.start_main_#t~nondet2=|ULTIMATE.start_main_#t~nondet2_Out1491414551|, ULTIMATE.start_main_#t~nondet3=|ULTIMATE.start_main_#t~nondet3_Out1491414551|, #NULL.offset=|#NULL.offset_Out1491414551|, ULTIMATE.start_#in~argv.offset=|ULTIMATE.start_#in~argv.offset_In1491414551|, ULTIMATE.start_main_#t~post4=|ULTIMATE.start_main_#t~post4_Out1491414551|, ULTIMATE.start_main_~argv.base=ULTIMATE.start_main_~argv.base_Out1491414551, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out1491414551, ULTIMATE.start_main_~argc=ULTIMATE.start_main_~argc_Out1491414551, #length=|#length_Out1491414551|, ULTIMATE.start_#in~argc=|ULTIMATE.start_#in~argc_In1491414551|, ULTIMATE.start_main_~#t2~0.base=|ULTIMATE.start_main_~#t2~0.base_Out1491414551|, ULTIMATE.start_#in~argv.base=|ULTIMATE.start_#in~argv.base_In1491414551|, ULTIMATE.start_main_#in~argv.base=|ULTIMATE.start_main_#in~argv.base_Out1491414551|, ULTIMATE.start_main_#in~argv.offset=|ULTIMATE.start_main_#in~argv.offset_Out1491414551|, ULTIMATE.start_main_~#t2~0.offset=|ULTIMATE.start_main_~#t2~0.offset_Out1491414551|, ULTIMATE.start_main_~i~0=ULTIMATE.start_main_~i~0_Out1491414551, #NULL.base=|#NULL.base_Out1491414551|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_Out1491414551|, ULTIMATE.start_main_~#t1~0.base=|ULTIMATE.start_main_~#t1~0.base_Out1491414551|, #StackHeapBarrier=|#StackHeapBarrier_In1491414551|, ULTIMATE.start_main_#res=|ULTIMATE.start_main_#res_Out1491414551|, #valid=|#valid_Out1491414551|, ULTIMATE.start_main_#in~argc=|ULTIMATE.start_main_#in~argc_Out1491414551|, #memory_int=|#memory_int_Out1491414551|, ~n~0=~n~0_Out1491414551, ~x~0=~x~0_Out1491414551, ULTIMATE.start_main_~#t1~0.offset=|ULTIMATE.start_main_~#t1~0.offset_Out1491414551|} 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 [2020-09-12 00:18:13,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 12:18:13 BasicIcfg [2020-09-12 00:18:13,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-12 00:18:13,351 INFO L168 Benchmark]: Toolchain (without parser) took 4275.27 ms. Allocated memory was 146.3 MB in the beginning and 247.5 MB in the end (delta: 101.2 MB). Free memory was 101.4 MB in the beginning and 97.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 105.0 MB. Max. memory is 7.1 GB. [2020-09-12 00:18:13,352 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-12 00:18:13,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.70 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 163.2 MB in the end (delta: -62.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-09-12 00:18:13,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.96 ms. Allocated memory is still 203.9 MB. Free memory was 163.2 MB in the beginning and 160.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-12 00:18:13,355 INFO L168 Benchmark]: Boogie Preprocessor took 37.89 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 159.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-12 00:18:13,356 INFO L168 Benchmark]: RCFGBuilder took 479.24 ms. Allocated memory is still 203.9 MB. Free memory was 159.2 MB in the beginning and 138.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-09-12 00:18:13,357 INFO L168 Benchmark]: TraceAbstraction took 2873.05 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 138.1 MB in the beginning and 97.5 MB in the end (delta: 40.6 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-09-12 00:18:13,362 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 820.70 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 163.2 MB in the end (delta: -62.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.96 ms. Allocated memory is still 203.9 MB. Free memory was 163.2 MB in the beginning and 160.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.89 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 159.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.24 ms. Allocated memory is still 203.9 MB. Free memory was 159.2 MB in the beginning and 138.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2873.05 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 138.1 MB in the beginning and 97.5 MB in the end (delta: 40.6 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 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, 0 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: 2.1s, 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...