/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:29:56,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:29:56,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:29:56,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 20:29:56,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:29:56,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:29:56,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:29:56,744 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 20:29:56,779 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:29:56,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:29:56,780 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:29:56,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:29:56,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:29:56,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:29:56,783 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:29:56,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:29:56,784 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:29:56,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:29:56,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:29:56,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:29:56,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:29:56,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:29:56,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:29:56,785 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:29:56,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:29:56,785 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:29:56,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:29:56,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:29:56,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:29:56,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:29:56,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:29:56,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:29:56,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:29:56,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:29:56,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:29:56,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:29:56,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:29:56,787 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:29:56,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:29:56,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:29:57,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:29:57,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:29:57,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:29:57,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:29:57,143 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:29:57,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c [2021-06-05 20:29:57,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3450d3a2f/d07afeba871b40bd990d4e27fac1d48a/FLAG260425fb1 [2021-06-05 20:29:57,677 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:29:57,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c [2021-06-05 20:29:57,678 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 20:29:57,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3450d3a2f/d07afeba871b40bd990d4e27fac1d48a/FLAG260425fb1 [2021-06-05 20:29:58,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3450d3a2f/d07afeba871b40bd990d4e27fac1d48a [2021-06-05 20:29:58,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:29:58,227 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:29:58,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:29:58,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:29:58,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:29:58,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710801fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58, skipping insertion in model container [2021-06-05 20:29:58,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:29:58,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:29:58,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:29:58,359 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:29:58,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:29:58,388 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:29:58,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58 WrapperNode [2021-06-05 20:29:58,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:29:58,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:29:58,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:29:58,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:29:58,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:29:58,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:29:58,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:29:58,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:29:58,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (1/1) ... [2021-06-05 20:29:58,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:29:58,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:29:58,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:29:58,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:29:58,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:29:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:29:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 20:29:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 20:29:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-05 20:29:58,496 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-05 20:29:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:29:58,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:29:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:29:58,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:29:58,499 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 20:29:58,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:29:58,644 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 20:29:58,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:29:58 BoogieIcfgContainer [2021-06-05 20:29:58,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:29:58,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:29:58,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:29:58,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:29:58,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:29:58" (1/3) ... [2021-06-05 20:29:58,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21293708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:29:58, skipping insertion in model container [2021-06-05 20:29:58,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:58" (2/3) ... [2021-06-05 20:29:58,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21293708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:29:58, skipping insertion in model container [2021-06-05 20:29:58,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:29:58" (3/3) ... [2021-06-05 20:29:58,652 INFO L111 eAbstractionObserver]: Analyzing ICFG 14a-subsequent-blocks.c [2021-06-05 20:29:58,656 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:29:58,656 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:29:58,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 20:29:58,657 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:29:58,677 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,677 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,678 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,678 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,678 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,678 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,678 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,678 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,679 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,679 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,679 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,679 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,681 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,681 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,681 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,681 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:58,691 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 20:29:58,707 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 20:29:58,743 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:29:58,743 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:29:58,743 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:29:58,743 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:29:58,743 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:29:58,743 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:29:58,743 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:29:58,744 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == fooThread1of1ForFork0======== [2021-06-05 20:29:58,767 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 26 transitions, 57 flow [2021-06-05 20:29:58,790 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 74 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 73 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:58,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 73 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-06-05 20:29:58,796 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:29:58,797 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:29:58,797 INFO L430 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:29:58,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:29:58,802 INFO L82 PathProgramCache]: Analyzing trace with hash 978594176, now seen corresponding path program 1 times [2021-06-05 20:29:58,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:29:58,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043430527] [2021-06-05 20:29:58,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:29:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:29:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:29:58,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:29:58,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043430527] [2021-06-05 20:29:58,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043430527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:29:58,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:29:58,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 20:29:58,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859894001] [2021-06-05 20:29:58,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:29:58,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:29:58,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:29:58,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:29:58,942 INFO L87 Difference]: Start difference. First operand has 74 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 73 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:58,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:29:58,963 INFO L93 Difference]: Finished difference Result 65 states and 104 transitions. [2021-06-05 20:29:58,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:29:58,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-06-05 20:29:58,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:29:58,970 INFO L225 Difference]: With dead ends: 65 [2021-06-05 20:29:58,970 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:29:58,971 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:29:58,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:29:58,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:29:58,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:58,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:29:58,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-06-05 20:29:58,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:29:58,989 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:29:58,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:58,989 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:29:58,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:29:58,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:29:58,990 INFO L301 ceAbstractionStarter]: Result for error location fooThread1of1ForFork0 was SAFE (1/3) [2021-06-05 20:29:58,991 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 20:29:58,993 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:29:58,993 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:29:58,993 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:29:58,993 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:29:58,994 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:29:58,994 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:29:58,994 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:29:58,994 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == foo======== [2021-06-05 20:29:58,995 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 26 transitions, 57 flow [2021-06-05 20:29:59,000 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 74 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 73 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:59,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 73 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:59,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:29:59,002 INFO L301 ceAbstractionStarter]: Result for error location foo was SAFE (2/3) [2021-06-05 20:29:59,003 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 20:29:59,004 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:29:59,004 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:29:59,005 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:29:59,005 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:29:59,005 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:29:59,005 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:29:59,005 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:29:59,005 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:29:59,006 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 26 transitions, 57 flow [2021-06-05 20:29:59,009 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 74 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 73 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:59,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 73 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:59,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:29:59,011 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (3/3) [2021-06-05 20:29:59,011 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:29:59,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:29:59 BasicIcfg [2021-06-05 20:29:59,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:29:59,015 INFO L168 Benchmark]: Toolchain (without parser) took 787.89 ms. Allocated memory is still 343.9 MB. Free memory was 305.6 MB in the beginning and 285.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.0 GB. [2021-06-05 20:29:59,015 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 343.9 MB. Free memory was 324.0 MB in the beginning and 323.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:29:59,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.25 ms. Allocated memory is still 343.9 MB. Free memory was 305.3 MB in the beginning and 327.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2021-06-05 20:29:59,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.88 ms. Allocated memory is still 343.9 MB. Free memory was 327.1 MB in the beginning and 326.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:29:59,017 INFO L168 Benchmark]: Boogie Preprocessor took 13.17 ms. Allocated memory is still 343.9 MB. Free memory was 326.0 MB in the beginning and 325.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:29:59,018 INFO L168 Benchmark]: RCFGBuilder took 217.76 ms. Allocated memory is still 343.9 MB. Free memory was 325.0 MB in the beginning and 309.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-06-05 20:29:59,018 INFO L168 Benchmark]: TraceAbstraction took 367.03 ms. Allocated memory is still 343.9 MB. Free memory was 309.2 MB in the beginning and 285.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:29:59,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 343.9 MB. Free memory was 324.0 MB in the beginning and 323.9 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 160.25 ms. Allocated memory is still 343.9 MB. Free memory was 305.3 MB in the beginning and 327.1 MB in the end (delta: -21.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.88 ms. Allocated memory is still 343.9 MB. Free memory was 327.1 MB in the beginning and 326.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.17 ms. Allocated memory is still 343.9 MB. Free memory was 326.0 MB in the beginning and 325.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 217.76 ms. Allocated memory is still 343.9 MB. Free memory was 325.0 MB in the beginning and 309.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 367.03 ms. Allocated memory is still 343.9 MB. Free memory was 309.2 MB in the beginning and 285.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: fooThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 35 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 249.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 6.5ms, AutomataDifference: 40.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 46.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23 SDtfs, 17 SDslu, 3 SDs, 0 SdLazy, 1 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.1ms SsaConstructionTime, 15.8ms SatisfiabilityAnalysisTime, 44.0ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: foo with 1 thread instances CFG has 3 procedures, 35 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 2.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 35 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 1.5ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...