/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/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:24:01,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:24:01,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:24:01,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:24:01,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:24:01,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:24:01,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:24:01,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:24:01,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:24:01,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:24:01,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:24:01,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:24:01,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:24:01,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:24:01,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:24:01,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:24:01,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:24:01,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:24:01,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:24:01,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:24:01,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:24:01,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:24:01,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:24:01,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:24:01,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:24:01,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:24:01,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:24:01,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:24:01,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:24:01,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:24:01,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:24:01,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:24:01,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:24:01,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:24:01,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:24:01,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:24:01,688 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-McrAutomaton-WP.epf [2020-10-06 01:24:01,735 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:24:01,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:24:01,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:24:01,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:24:01,739 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:24:01,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:24:01,740 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:24:01,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:24:01,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:24:01,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:24:01,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:24:01,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:24:01,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:24:01,742 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:24:01,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:24:01,743 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:24:01,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:24:01,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:24:01,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:24:01,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:24:01,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:24:01,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:24:01,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:24:01,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:24:01,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:24:01,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:24:01,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:24:01,745 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:24:01,745 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:24:01,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:24:01,746 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:24:02,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:24:02,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:24:02,035 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:24:02,036 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:24:02,037 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:24:02,037 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2020-10-06 01:24:02,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9451f2d67/14a7f5ce6f4249058cac00af3ff799b4/FLAG54426d6a7 [2020-10-06 01:24:02,589 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:24:02,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkFork.c [2020-10-06 01:24:02,590 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-06 01:24:02,590 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-10-06 01:24:02,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9451f2d67/14a7f5ce6f4249058cac00af3ff799b4/FLAG54426d6a7 [2020-10-06 01:24:02,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9451f2d67/14a7f5ce6f4249058cac00af3ff799b4 [2020-10-06 01:24:02,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:24:02,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:24:02,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:24:02,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:24:02,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:24:02,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:24:02" (1/1) ... [2020-10-06 01:24:02,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568aaa6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:02, skipping insertion in model container [2020-10-06 01:24:02,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:24:02" (1/1) ... [2020-10-06 01:24:02,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:24:03,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:24:03,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:24:03,287 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:24:03,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:24:03,319 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:24:03,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03 WrapperNode [2020-10-06 01:24:03,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:24:03,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:24:03,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:24:03,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:24:03,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (1/1) ... [2020-10-06 01:24:03,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (1/1) ... [2020-10-06 01:24:03,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:24:03,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:24:03,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:24:03,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:24:03,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (1/1) ... [2020-10-06 01:24:03,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (1/1) ... [2020-10-06 01:24:03,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (1/1) ... [2020-10-06 01:24:03,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (1/1) ... [2020-10-06 01:24:03,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (1/1) ... [2020-10-06 01:24:03,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (1/1) ... [2020-10-06 01:24:03,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (1/1) ... [2020-10-06 01:24:03,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:24:03,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:24:03,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:24:03,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:24:03,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (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 [2020-10-06 01:24:03,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-06 01:24:03,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:24:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2020-10-06 01:24:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2020-10-06 01:24:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-06 01:24:03,450 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-06 01:24:03,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:24:03,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:24:03,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-06 01:24:03,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-06 01:24:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-06 01:24:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:24:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:24:03,454 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:24:03,795 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:24:03,796 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-06 01:24:03,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:24:03 BoogieIcfgContainer [2020-10-06 01:24:03,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:24:03,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:24:03,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:24:03,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:24:03,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:24:02" (1/3) ... [2020-10-06 01:24:03,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d48c753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:24:03, skipping insertion in model container [2020-10-06 01:24:03,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:24:03" (2/3) ... [2020-10-06 01:24:03,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d48c753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:24:03, skipping insertion in model container [2020-10-06 01:24:03,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:24:03" (3/3) ... [2020-10-06 01:24:03,806 INFO L109 eAbstractionObserver]: Analyzing ICFG forkFork.c [2020-10-06 01:24:03,817 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:24:03,817 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:24:03,824 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 01:24:03,825 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:24:03,861 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,862 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,862 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,862 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,863 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,863 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,863 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,863 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,864 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,864 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,864 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,864 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,864 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,865 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,865 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,865 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,866 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,866 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,866 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,866 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,867 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,867 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,868 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,868 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,868 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,868 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,869 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,870 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,870 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,870 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,870 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,871 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,871 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,871 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,871 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,872 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,872 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,872 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,872 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,873 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,873 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,874 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,874 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,874 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,875 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,876 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,876 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,876 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,876 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,877 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,877 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,877 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,877 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,878 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,878 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,878 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,879 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,879 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,879 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,879 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,880 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,880 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,880 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,881 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,881 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,881 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,881 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,882 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,889 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,889 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,890 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,890 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,890 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,890 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,891 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,891 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,891 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,898 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,899 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,899 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,899 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,899 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,900 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,900 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,900 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,901 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,901 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,901 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,901 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,902 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,902 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,902 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,903 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,906 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,907 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,907 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,907 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,907 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,908 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,908 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,908 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,909 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:24:03,951 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-06 01:24:03,973 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:24:03,973 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:24:03,973 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:24:03,974 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:24:03,974 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:24:03,974 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:24:03,974 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:24:03,974 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:24:03,994 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 83 transitions, 194 flow [2020-10-06 01:24:03,996 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 194 flow [2020-10-06 01:24:04,058 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-06 01:24:04,059 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-06 01:24:04,063 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 89 events. 2/89 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 98. Up to 5 conditions per place. [2020-10-06 01:24:04,066 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 194 flow [2020-10-06 01:24:04,095 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-06 01:24:04,095 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-06 01:24:04,096 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 89 events. 2/89 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 98. Up to 5 conditions per place. [2020-10-06 01:24:04,098 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 334 [2020-10-06 01:24:04,099 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:24:05,328 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-10-06 01:24:05,456 INFO L206 etLargeBlockEncoding]: Checked pairs total: 454 [2020-10-06 01:24:05,456 INFO L214 etLargeBlockEncoding]: Total number of compositions: 61 [2020-10-06 01:24:05,460 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 26 transitions, 80 flow [2020-10-06 01:24:05,471 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 56 states. [2020-10-06 01:24:05,474 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-06 01:24:05,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-06 01:24:05,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:24:05,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:24:05,482 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:24:05,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:24:05,487 INFO L82 PathProgramCache]: Analyzing trace with hash -149989621, now seen corresponding path program 1 times [2020-10-06 01:24:05,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:24:05,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292580862] [2020-10-06 01:24:05,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:24:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:24:05,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:24:05,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292580862] [2020-10-06 01:24:05,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:24:05,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-06 01:24:05,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [998765804] [2020-10-06 01:24:05,783 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:24:05,788 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:24:05,804 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-06 01:24:05,804 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:24:05,809 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:24:05,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-06 01:24:05,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:24:05,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-06 01:24:05,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:24:05,827 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 8 states. [2020-10-06 01:24:06,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:24:06,048 INFO L93 Difference]: Finished difference Result 50 states and 83 transitions. [2020-10-06 01:24:06,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-06 01:24:06,050 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2020-10-06 01:24:06,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:24:06,060 INFO L225 Difference]: With dead ends: 50 [2020-10-06 01:24:06,060 INFO L226 Difference]: Without dead ends: 47 [2020-10-06 01:24:06,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-06 01:24:06,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-06 01:24:06,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-06 01:24:06,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-06 01:24:06,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 79 transitions. [2020-10-06 01:24:06,103 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 79 transitions. Word has length 7 [2020-10-06 01:24:06,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:24:06,104 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 79 transitions. [2020-10-06 01:24:06,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-06 01:24:06,104 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2020-10-06 01:24:06,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:24:06,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:24:06,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:24:06,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:24:06,106 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:24:06,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:24:06,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1255807394, now seen corresponding path program 1 times [2020-10-06 01:24:06,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:24:06,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616525474] [2020-10-06 01:24:06,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:24:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:24:06,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:24:06,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616525474] [2020-10-06 01:24:06,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:24:06,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-06 01:24:06,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1390521985] [2020-10-06 01:24:06,296 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:24:06,299 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:24:06,304 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-10-06 01:24:06,305 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:24:06,365 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:06,378 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:24:06,381 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:06,387 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:24:06,387 INFO L513 ElimStorePlain]: Eliminatee |#memory_$Pointer$.base| vanished before elimination [2020-10-06 01:24:06,387 INFO L513 ElimStorePlain]: Eliminatee |#memory_$Pointer$.offset| vanished before elimination [2020-10-06 01:24:06,389 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-06 01:24:06,390 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:63, output treesize:31 [2020-10-06 01:24:06,391 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:24:06,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-06 01:24:06,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:24:06,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-06 01:24:06,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-06 01:24:06,393 INFO L87 Difference]: Start difference. First operand 47 states and 79 transitions. Second operand 10 states. [2020-10-06 01:24:06,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:24:06,753 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2020-10-06 01:24:06,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-06 01:24:06,753 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-10-06 01:24:06,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:24:06,754 INFO L225 Difference]: With dead ends: 57 [2020-10-06 01:24:06,755 INFO L226 Difference]: Without dead ends: 57 [2020-10-06 01:24:06,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-06 01:24:06,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-06 01:24:06,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-10-06 01:24:06,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-06 01:24:06,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 85 transitions. [2020-10-06 01:24:06,764 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 85 transitions. Word has length 12 [2020-10-06 01:24:06,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:24:06,764 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 85 transitions. [2020-10-06 01:24:06,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-06 01:24:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 85 transitions. [2020-10-06 01:24:06,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:24:06,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:24:06,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:24:06,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:24:06,766 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:24:06,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:24:06,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1573748830, now seen corresponding path program 2 times [2020-10-06 01:24:06,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:24:06,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754048980] [2020-10-06 01:24:06,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:24:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:24:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:24:06,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754048980] [2020-10-06 01:24:06,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:24:06,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-06 01:24:06,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1167303271] [2020-10-06 01:24:06,900 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:24:06,902 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:24:06,905 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-10-06 01:24:06,905 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:24:06,938 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:06,944 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:24:06,947 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:06,949 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:24:06,949 INFO L513 ElimStorePlain]: Eliminatee |#memory_$Pointer$.base| vanished before elimination [2020-10-06 01:24:06,949 INFO L513 ElimStorePlain]: Eliminatee |#memory_$Pointer$.offset| vanished before elimination [2020-10-06 01:24:06,950 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-06 01:24:06,951 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:48, output treesize:15 [2020-10-06 01:24:06,951 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [552#(not (= barThread1of1ForFork0_thidvar0 (select (select |#memory_int| |ULTIMATE.start_main_~#thread_id~0.base|) |ULTIMATE.start_main_~#thread_id~0.offset|)))] [2020-10-06 01:24:06,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-06 01:24:06,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:24:06,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-06 01:24:06,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:24:06,953 INFO L87 Difference]: Start difference. First operand 51 states and 85 transitions. Second operand 8 states. [2020-10-06 01:24:07,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:24:07,171 INFO L93 Difference]: Finished difference Result 50 states and 79 transitions. [2020-10-06 01:24:07,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-06 01:24:07,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-10-06 01:24:07,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:24:07,174 INFO L225 Difference]: With dead ends: 50 [2020-10-06 01:24:07,174 INFO L226 Difference]: Without dead ends: 50 [2020-10-06 01:24:07,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-06 01:24:07,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-06 01:24:07,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2020-10-06 01:24:07,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-06 01:24:07,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 68 transitions. [2020-10-06 01:24:07,181 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 68 transitions. Word has length 12 [2020-10-06 01:24:07,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:24:07,181 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 68 transitions. [2020-10-06 01:24:07,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-06 01:24:07,182 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 68 transitions. [2020-10-06 01:24:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-06 01:24:07,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:24:07,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:24:07,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:24:07,183 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:24:07,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:24:07,184 INFO L82 PathProgramCache]: Analyzing trace with hash 67837309, now seen corresponding path program 1 times [2020-10-06 01:24:07,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:24:07,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255988213] [2020-10-06 01:24:07,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:24:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:24:07,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:24:07,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255988213] [2020-10-06 01:24:07,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:24:07,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-06 01:24:07,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2064204736] [2020-10-06 01:24:07,530 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:24:07,534 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:24:07,539 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 17 transitions. [2020-10-06 01:24:07,540 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:24:07,540 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:24:07,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-06 01:24:07,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:24:07,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-06 01:24:07,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-10-06 01:24:07,542 INFO L87 Difference]: Start difference. First operand 41 states and 68 transitions. Second operand 15 states. [2020-10-06 01:24:08,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:24:08,247 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2020-10-06 01:24:08,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-06 01:24:08,247 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2020-10-06 01:24:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:24:08,248 INFO L225 Difference]: With dead ends: 47 [2020-10-06 01:24:08,249 INFO L226 Difference]: Without dead ends: 39 [2020-10-06 01:24:08,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2020-10-06 01:24:08,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-06 01:24:08,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-06 01:24:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-06 01:24:08,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 64 transitions. [2020-10-06 01:24:08,254 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 64 transitions. Word has length 17 [2020-10-06 01:24:08,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:24:08,255 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 64 transitions. [2020-10-06 01:24:08,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-06 01:24:08,255 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions. [2020-10-06 01:24:08,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-06 01:24:08,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:24:08,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:24:08,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:24:08,256 INFO L427 AbstractCegarLoop]: === Iteration 5 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:24:08,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:24:08,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1960936835, now seen corresponding path program 2 times [2020-10-06 01:24:08,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:24:08,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314445730] [2020-10-06 01:24:08,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:24:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:24:08,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:24:08,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314445730] [2020-10-06 01:24:08,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:24:08,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-06 01:24:08,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2012449553] [2020-10-06 01:24:08,484 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:24:08,490 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:24:08,519 INFO L258 McrAutomatonBuilder]: Finished intersection with 26 states and 33 transitions. [2020-10-06 01:24:08,519 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:24:08,526 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-06 01:24:08,546 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-06 01:24:08,551 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:08,558 INFO L545 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-06 01:24:08,569 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:24:08,572 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2020-10-06 01:24:08,573 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:70, output treesize:35 [2020-10-06 01:24:08,575 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:24:08,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-06 01:24:08,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:24:08,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-06 01:24:08,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-06 01:24:08,578 INFO L87 Difference]: Start difference. First operand 39 states and 64 transitions. Second operand 14 states. [2020-10-06 01:24:09,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:24:09,216 INFO L93 Difference]: Finished difference Result 47 states and 73 transitions. [2020-10-06 01:24:09,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-06 01:24:09,217 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-10-06 01:24:09,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:24:09,218 INFO L225 Difference]: With dead ends: 47 [2020-10-06 01:24:09,218 INFO L226 Difference]: Without dead ends: 38 [2020-10-06 01:24:09,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2020-10-06 01:24:09,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-06 01:24:09,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-06 01:24:09,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-06 01:24:09,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-06 01:24:09,226 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 17 [2020-10-06 01:24:09,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:24:09,226 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-06 01:24:09,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-06 01:24:09,226 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-06 01:24:09,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-06 01:24:09,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:24:09,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:24:09,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:24:09,228 INFO L427 AbstractCegarLoop]: === Iteration 6 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:24:09,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:24:09,228 INFO L82 PathProgramCache]: Analyzing trace with hash -430501265, now seen corresponding path program 3 times [2020-10-06 01:24:09,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:24:09,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288964501] [2020-10-06 01:24:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:24:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:24:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:24:09,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288964501] [2020-10-06 01:24:09,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:24:09,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-06 01:24:09,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1076939677] [2020-10-06 01:24:09,480 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:24:09,483 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:24:09,490 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 29 transitions. [2020-10-06 01:24:09,490 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:24:09,544 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-06 01:24:09,556 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:09,559 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:09,561 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:09,564 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:09,598 INFO L625 ElimStorePlain]: treesize reduction 64, result has 48.0 percent of original size [2020-10-06 01:24:09,601 INFO L545 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:09,604 INFO L545 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:09,613 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:24:09,615 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-10-06 01:24:09,615 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:187, output treesize:27 [2020-10-06 01:24:09,616 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1032#(and (not (= |ULTIMATE.start_main_~#ret_val~0.base| |barThread1of1ForFork0_#res.base|)) (<= (select (select |#memory_int| |barThread1of1ForFork0_#res.base|) |barThread1of1ForFork0_#res.offset|) 10) (<= 10 (select (select |#memory_int| |barThread1of1ForFork0_#res.base|) |barThread1of1ForFork0_#res.offset|)) (not (= |fooThread1of1ForFork1_~#ret~0.base| |barThread1of1ForFork0_#res.base|)))] [2020-10-06 01:24:09,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-06 01:24:09,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:24:09,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-06 01:24:09,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-06 01:24:09,618 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 15 states. [2020-10-06 01:24:10,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:24:10,344 INFO L93 Difference]: Finished difference Result 52 states and 82 transitions. [2020-10-06 01:24:10,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-06 01:24:10,345 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2020-10-06 01:24:10,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:24:10,346 INFO L225 Difference]: With dead ends: 52 [2020-10-06 01:24:10,346 INFO L226 Difference]: Without dead ends: 35 [2020-10-06 01:24:10,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2020-10-06 01:24:10,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-06 01:24:10,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-06 01:24:10,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-06 01:24:10,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 54 transitions. [2020-10-06 01:24:10,352 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 54 transitions. Word has length 17 [2020-10-06 01:24:10,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:24:10,352 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 54 transitions. [2020-10-06 01:24:10,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-06 01:24:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2020-10-06 01:24:10,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-06 01:24:10,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:24:10,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:24:10,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:24:10,354 INFO L427 AbstractCegarLoop]: === Iteration 7 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:24:10,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:24:10,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1664064943, now seen corresponding path program 4 times [2020-10-06 01:24:10,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:24:10,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573026155] [2020-10-06 01:24:10,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:24:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:24:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:24:10,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573026155] [2020-10-06 01:24:10,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:24:10,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-06 01:24:10,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [155865167] [2020-10-06 01:24:10,643 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:24:10,647 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:24:10,653 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 27 transitions. [2020-10-06 01:24:10,653 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:24:10,703 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:10,706 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:10,715 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:24:10,722 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:10,723 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-06 01:24:10,726 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-06 01:24:10,726 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-06 01:24:10,727 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:75, output treesize:9 [2020-10-06 01:24:10,727 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1193#(and (not (= fooThread1of1ForFork1_~param~0.base |fooThread1of1ForFork1_~#ret~0.base|)) (not (= fooThread1of1ForFork1_~param~0.base |ULTIMATE.start_main_~#ret_val~0.base|)))] [2020-10-06 01:24:10,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-06 01:24:10,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:24:10,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-06 01:24:10,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-06 01:24:10,728 INFO L87 Difference]: Start difference. First operand 35 states and 54 transitions. Second operand 15 states. [2020-10-06 01:24:11,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:24:11,365 INFO L93 Difference]: Finished difference Result 57 states and 88 transitions. [2020-10-06 01:24:11,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-06 01:24:11,366 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2020-10-06 01:24:11,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:24:11,366 INFO L225 Difference]: With dead ends: 57 [2020-10-06 01:24:11,367 INFO L226 Difference]: Without dead ends: 31 [2020-10-06 01:24:11,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2020-10-06 01:24:11,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-06 01:24:11,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-06 01:24:11,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-06 01:24:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 46 transitions. [2020-10-06 01:24:11,371 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 46 transitions. Word has length 17 [2020-10-06 01:24:11,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:24:11,371 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 46 transitions. [2020-10-06 01:24:11,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-06 01:24:11,371 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2020-10-06 01:24:11,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-06 01:24:11,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:24:11,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:24:11,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:24:11,373 INFO L427 AbstractCegarLoop]: === Iteration 8 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:24:11,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:24:11,373 INFO L82 PathProgramCache]: Analyzing trace with hash -211343889, now seen corresponding path program 5 times [2020-10-06 01:24:11,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:24:11,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640517437] [2020-10-06 01:24:11,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:24:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:24:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:24:11,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640517437] [2020-10-06 01:24:11,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:24:11,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-06 01:24:11,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [799485191] [2020-10-06 01:24:11,653 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:24:11,657 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:24:11,660 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 19 transitions. [2020-10-06 01:24:11,661 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:24:11,664 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:24:11,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-06 01:24:11,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:24:11,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-06 01:24:11,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-06 01:24:11,665 INFO L87 Difference]: Start difference. First operand 31 states and 46 transitions. Second operand 14 states. [2020-10-06 01:24:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:24:12,229 INFO L93 Difference]: Finished difference Result 55 states and 83 transitions. [2020-10-06 01:24:12,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-06 01:24:12,229 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-10-06 01:24:12,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:24:12,230 INFO L225 Difference]: With dead ends: 55 [2020-10-06 01:24:12,230 INFO L226 Difference]: Without dead ends: 30 [2020-10-06 01:24:12,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2020-10-06 01:24:12,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-06 01:24:12,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-06 01:24:12,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-06 01:24:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-06 01:24:12,234 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-06 01:24:12,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:24:12,235 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-06 01:24:12,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-06 01:24:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-06 01:24:12,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-06 01:24:12,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:24:12,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:24:12,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 01:24:12,236 INFO L427 AbstractCegarLoop]: === Iteration 9 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, barErr0ASSERT_VIOLATIONASSERT]=== [2020-10-06 01:24:12,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:24:12,236 INFO L82 PathProgramCache]: Analyzing trace with hash 57402539, now seen corresponding path program 6 times [2020-10-06 01:24:12,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:24:12,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648905286] [2020-10-06 01:24:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:24:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:24:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:24:12,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648905286] [2020-10-06 01:24:12,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:24:12,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-06 01:24:12,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1826291485] [2020-10-06 01:24:12,476 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:24:12,479 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:24:12,483 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 21 transitions. [2020-10-06 01:24:12,483 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:24:12,489 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-10-06 01:24:12,495 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:24:12,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-06 01:24:12,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:24:12,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-06 01:24:12,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-06 01:24:12,496 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 14 states. [2020-10-06 01:24:13,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:24:13,005 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-06 01:24:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-06 01:24:13,006 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-10-06 01:24:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:24:13,006 INFO L225 Difference]: With dead ends: 29 [2020-10-06 01:24:13,006 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:24:13,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2020-10-06 01:24:13,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:24:13,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:24:13,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:24:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:24:13,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-06 01:24:13,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:24:13,009 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:24:13,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-06 01:24:13,009 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:24:13,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:24:13,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 01:24:13,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:24:13 BasicIcfg [2020-10-06 01:24:13,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:24:13,016 INFO L168 Benchmark]: Toolchain (without parser) took 10050.86 ms. Allocated memory was 141.0 MB in the beginning and 322.4 MB in the end (delta: 181.4 MB). Free memory was 102.1 MB in the beginning and 106.8 MB in the end (delta: -4.7 MB). Peak memory consumption was 176.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:24:13,017 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:24:13,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.03 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 181.7 MB in the end (delta: -79.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-10-06 01:24:13,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.75 ms. Allocated memory is still 204.5 MB. Free memory was 181.7 MB in the beginning and 179.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:24:13,019 INFO L168 Benchmark]: Boogie Preprocessor took 25.92 ms. Allocated memory is still 204.5 MB. Free memory was 179.8 MB in the beginning and 178.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:24:13,020 INFO L168 Benchmark]: RCFGBuilder took 414.14 ms. Allocated memory is still 204.5 MB. Free memory was 178.4 MB in the beginning and 156.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:24:13,021 INFO L168 Benchmark]: TraceAbstraction took 9214.82 ms. Allocated memory was 204.5 MB in the beginning and 322.4 MB in the end (delta: 118.0 MB). Free memory was 155.9 MB in the beginning and 106.8 MB in the end (delta: 49.1 MB). Peak memory consumption was 167.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:24:13,025 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 354.03 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 181.7 MB in the end (delta: -79.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.75 ms. Allocated memory is still 204.5 MB. Free memory was 181.7 MB in the beginning and 179.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.92 ms. Allocated memory is still 204.5 MB. Free memory was 179.8 MB in the beginning and 178.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.14 ms. Allocated memory is still 204.5 MB. Free memory was 178.4 MB in the beginning and 156.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9214.82 ms. Allocated memory was 204.5 MB in the beginning and 322.4 MB in the end (delta: 118.0 MB). Free memory was 155.9 MB in the beginning and 106.8 MB in the end (delta: 49.1 MB). Peak memory consumption was 167.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 89 ProgramPointsBefore, 30 ProgramPointsAfterwards, 83 TransitionsBefore, 26 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 151 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 454 CheckedPairsTotal, 61 TotalNumberOfCompositions - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 82 SDtfs, 413 SDslu, 188 SDs, 0 SdLazy, 1945 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 9 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 29035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...