/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:45:48,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:45:48,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:45:48,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:45:48,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:45:48,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:45:48,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:45:48,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:45:48,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:45:48,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:45:48,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:45:48,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:45:48,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:45:48,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:45:48,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:45:48,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:45:48,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:45:48,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:45:48,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:45:48,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:45:48,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:45:48,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:45:48,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:45:48,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:45:48,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:45:48,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:45:48,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:45:48,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:45:48,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:45:48,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:45:48,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:45:48,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:45:48,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:45:48,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:45:48,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:45:48,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:45:48,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:45:48,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:45:48,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:45:48,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:45:48,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:45:48,549 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:45:48,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:45:48,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:45:48,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:45:48,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:45:48,602 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:45:48,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:45:48,603 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:45:48,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:45:48,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:45:48,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:45:48,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:45:48,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:45:48,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:45:48,605 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:45:48,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:45:48,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:45:48,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:45:48,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:45:48,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:45:48,609 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:45:48,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:45:48,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:45:48,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:45:48,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:45:48,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:45:48,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:45:48,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:45:48,612 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:45:48,613 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:45:48,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:45:48,615 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:45:48,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:45:48,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:45:48,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:45:48,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:45:48,973 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:45:48,975 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-10-16 13:45:49,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0bdf4d2e/311d426279e2425c8e1652123af63a88/FLAG1f9e82b0b [2020-10-16 13:45:49,634 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:45:49,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-10-16 13:45:49,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0bdf4d2e/311d426279e2425c8e1652123af63a88/FLAG1f9e82b0b [2020-10-16 13:45:49,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e0bdf4d2e/311d426279e2425c8e1652123af63a88 [2020-10-16 13:45:49,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:45:49,911 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:45:49,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:45:49,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:45:49,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:45:49,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:49" (1/1) ... [2020-10-16 13:45:49,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48348f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:49, skipping insertion in model container [2020-10-16 13:45:49,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:49" (1/1) ... [2020-10-16 13:45:49,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:45:49,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:45:50,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:45:50,395 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:45:50,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:45:50,685 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:45:50,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50 WrapperNode [2020-10-16 13:45:50,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:45:50,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:45:50,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:45:50,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:45:50,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (1/1) ... [2020-10-16 13:45:50,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (1/1) ... [2020-10-16 13:45:50,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:45:50,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:45:50,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:45:50,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:45:50,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (1/1) ... [2020-10-16 13:45:50,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (1/1) ... [2020-10-16 13:45:50,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (1/1) ... [2020-10-16 13:45:50,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (1/1) ... [2020-10-16 13:45:50,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (1/1) ... [2020-10-16 13:45:50,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (1/1) ... [2020-10-16 13:45:50,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (1/1) ... [2020-10-16 13:45:50,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:45:50,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:45:50,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:45:50,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:45:50,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:45:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:45:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:45:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:45:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:45:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:45:50,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:45:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:45:50,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:45:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:45:50,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:45:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:45:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:45:50,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:45:50,848 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:45:51,314 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:45:51,315 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:45:51,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:51 BoogieIcfgContainer [2020-10-16 13:45:51,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:45:51,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:45:51,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:45:51,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:45:51,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:45:49" (1/3) ... [2020-10-16 13:45:51,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2487a245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:51, skipping insertion in model container [2020-10-16 13:45:51,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:50" (2/3) ... [2020-10-16 13:45:51,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2487a245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:51, skipping insertion in model container [2020-10-16 13:45:51,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:51" (3/3) ... [2020-10-16 13:45:51,327 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2020-10-16 13:45:51,339 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:45:51,339 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:45:51,347 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:45:51,348 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:45:51,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,381 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,381 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,383 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,384 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,385 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,385 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,385 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,385 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,386 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,386 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,390 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,390 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,391 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,391 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,398 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,399 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,399 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,402 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,402 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,402 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,402 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:51,404 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:45:51,419 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:45:51,442 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:45:51,442 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:45:51,442 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:45:51,442 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:45:51,443 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:45:51,443 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:45:51,443 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:45:51,443 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:45:51,458 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:45:51,459 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:45:51,461 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:45:51,464 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 13:45:51,508 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 13:45:51,509 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:45:51,514 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 13:45:51,517 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-16 13:45:52,890 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-16 13:45:52,940 INFO L132 LiptonReduction]: Checked pairs total: 2123 [2020-10-16 13:45:52,941 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-16 13:45:52,948 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-16 13:45:52,971 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-16 13:45:52,973 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-16 13:45:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:45:52,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:52,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:52,982 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:52,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:52,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-10-16 13:45:53,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:53,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995103366] [2020-10-16 13:45:53,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:53,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995103366] [2020-10-16 13:45:53,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:53,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:45:53,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [664223941] [2020-10-16 13:45:53,229 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:53,232 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:53,247 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:45:53,248 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:53,252 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:53,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:45:53,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:53,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:45:53,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:45:53,270 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-16 13:45:53,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:53,307 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-16 13:45:53,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:45:53,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 13:45:53,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:53,323 INFO L225 Difference]: With dead ends: 214 [2020-10-16 13:45:53,324 INFO L226 Difference]: Without dead ends: 166 [2020-10-16 13:45:53,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:45:53,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-16 13:45:53,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-16 13:45:53,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-16 13:45:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-16 13:45:53,388 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-16 13:45:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:53,390 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-16 13:45:53,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:45:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-16 13:45:53,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:45:53,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:53,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:53,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:45:53,392 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:53,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:53,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-10-16 13:45:53,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:53,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275407061] [2020-10-16 13:45:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:53,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275407061] [2020-10-16 13:45:53,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:53,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:53,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [583708746] [2020-10-16 13:45:53,520 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:53,522 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:53,525 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-10-16 13:45:53,525 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:53,549 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:53,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:53,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:53,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:53,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:53,551 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-16 13:45:53,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:53,580 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-10-16 13:45:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:45:53,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 13:45:53,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:53,583 INFO L225 Difference]: With dead ends: 202 [2020-10-16 13:45:53,583 INFO L226 Difference]: Without dead ends: 130 [2020-10-16 13:45:53,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:53,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-16 13:45:53,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-16 13:45:53,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-16 13:45:53,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-10-16 13:45:53,599 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-10-16 13:45:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:53,599 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-10-16 13:45:53,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-10-16 13:45:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:45:53,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:53,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:53,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:45:53,601 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:53,602 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-10-16 13:45:53,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:53,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038955259] [2020-10-16 13:45:53,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:53,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038955259] [2020-10-16 13:45:53,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:53,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:53,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [465354335] [2020-10-16 13:45:53,701 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:53,702 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:53,704 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-16 13:45:53,705 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:53,755 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:53,779 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:53,792 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1553#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-16 13:45:53,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:53,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:53,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:53,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:53,794 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 5 states. [2020-10-16 13:45:53,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:53,860 INFO L93 Difference]: Finished difference Result 121 states and 272 transitions. [2020-10-16 13:45:53,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:45:53,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-16 13:45:53,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:53,862 INFO L225 Difference]: With dead ends: 121 [2020-10-16 13:45:53,862 INFO L226 Difference]: Without dead ends: 85 [2020-10-16 13:45:53,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:53,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-16 13:45:53,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-16 13:45:53,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-16 13:45:53,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-10-16 13:45:53,871 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 10 [2020-10-16 13:45:53,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:53,871 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-10-16 13:45:53,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:53,871 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-10-16 13:45:53,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:45:53,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:53,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:53,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:45:53,873 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:53,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:53,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-10-16 13:45:53,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:53,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981281103] [2020-10-16 13:45:53,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:53,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:53,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981281103] [2020-10-16 13:45:53,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:53,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:45:53,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [741560640] [2020-10-16 13:45:53,942 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:53,943 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:53,945 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-10-16 13:45:53,946 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:53,981 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1855#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:45:53,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:45:53,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:53,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:45:53,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:53,983 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 7 states. [2020-10-16 13:45:54,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:54,039 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-10-16 13:45:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:45:54,040 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-16 13:45:54,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:54,042 INFO L225 Difference]: With dead ends: 80 [2020-10-16 13:45:54,042 INFO L226 Difference]: Without dead ends: 72 [2020-10-16 13:45:54,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:54,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-16 13:45:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-16 13:45:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-16 13:45:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-10-16 13:45:54,049 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-10-16 13:45:54,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:54,050 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-10-16 13:45:54,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:45:54,050 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-10-16 13:45:54,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:45:54,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:54,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:54,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:45:54,052 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:54,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:54,052 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-10-16 13:45:54,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:54,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710828000] [2020-10-16 13:45:54,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:54,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:54,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710828000] [2020-10-16 13:45:54,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:54,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:54,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1280091729] [2020-10-16 13:45:54,093 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:54,095 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:54,099 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 32 transitions. [2020-10-16 13:45:54,100 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:54,127 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:54,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:54,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:54,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:54,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:54,129 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-10-16 13:45:54,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:54,145 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-10-16 13:45:54,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:45:54,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-16 13:45:54,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:54,146 INFO L225 Difference]: With dead ends: 97 [2020-10-16 13:45:54,147 INFO L226 Difference]: Without dead ends: 48 [2020-10-16 13:45:54,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:54,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-16 13:45:54,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-16 13:45:54,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-16 13:45:54,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-10-16 13:45:54,151 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-10-16 13:45:54,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:54,151 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-10-16 13:45:54,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:54,152 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-10-16 13:45:54,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:45:54,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:54,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:54,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:45:54,153 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:54,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:54,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-10-16 13:45:54,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:54,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817751557] [2020-10-16 13:45:54,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:54,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817751557] [2020-10-16 13:45:54,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:54,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:54,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [816483503] [2020-10-16 13:45:54,209 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:54,211 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:54,217 INFO L258 McrAutomatonBuilder]: Finished intersection with 40 states and 64 transitions. [2020-10-16 13:45:54,217 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:54,333 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:54,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:54,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:54,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:54,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:54,335 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-10-16 13:45:54,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:54,343 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-10-16 13:45:54,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:45:54,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-16 13:45:54,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:54,344 INFO L225 Difference]: With dead ends: 47 [2020-10-16 13:45:54,345 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:45:54,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:54,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:45:54,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:45:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:45:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:45:54,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-16 13:45:54,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:54,347 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:45:54,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:54,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:45:54,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:45:54,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:45:54,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:45:54 BasicIcfg [2020-10-16 13:45:54,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:45:54,354 INFO L168 Benchmark]: Toolchain (without parser) took 4443.70 ms. Allocated memory was 137.4 MB in the beginning and 253.8 MB in the end (delta: 116.4 MB). Free memory was 98.2 MB in the beginning and 204.2 MB in the end (delta: -106.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:54,355 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:45:54,356 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.76 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 97.8 MB in the beginning and 158.1 MB in the end (delta: -60.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:54,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.83 ms. Allocated memory is still 199.8 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:54,357 INFO L168 Benchmark]: Boogie Preprocessor took 29.72 ms. Allocated memory is still 199.8 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:54,358 INFO L168 Benchmark]: RCFGBuilder took 544.47 ms. Allocated memory is still 199.8 MB. Free memory was 154.6 MB in the beginning and 132.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:54,359 INFO L168 Benchmark]: TraceAbstraction took 3033.14 ms. Allocated memory was 199.8 MB in the beginning and 253.8 MB in the end (delta: 54.0 MB). Free memory was 131.6 MB in the beginning and 204.2 MB in the end (delta: -72.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:45:54,363 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.76 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 97.8 MB in the beginning and 158.1 MB in the end (delta: -60.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.83 ms. Allocated memory is still 199.8 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.72 ms. Allocated memory is still 199.8 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 544.47 ms. Allocated memory is still 199.8 MB. Free memory was 154.6 MB in the beginning and 132.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3033.14 ms. Allocated memory was 199.8 MB in the beginning and 253.8 MB in the end (delta: 54.0 MB). Free memory was 131.6 MB in the beginning and 204.2 MB in the end (delta: -72.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 627 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 29 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 77 PlacesBefore, 30 PlacesAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2123 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 107 SDtfs, 117 SDslu, 151 SDs, 0 SdLazy, 85 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...