/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 20:13:17,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 20:13:17,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 20:13:18,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 20:13:18,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 20:13:18,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 20:13:18,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 20:13:18,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-06-13 20:13:18,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 20:13:18,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 20:13:18,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 20:13:18,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 20:13:18,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 20:13:18,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 20:13:18,090 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 20:13:18,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 20:13:18,090 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 20:13:18,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 20:13:18,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 20:13:18,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 20:13:18,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 20:13:18,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 20:13:18,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 20:13:18,092 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 20:13:18,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 20:13:18,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 20:13:18,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 20:13:18,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 20:13:18,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 20:13:18,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 20:13:18,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 20:13:18,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 20:13:18,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 20:13:18,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 20:13:18,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 20:13:18,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 20:13:18,093 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-13 20:13:18,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 20:13:18,093 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 20:13:18,094 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 20:13:18,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 20:13:18,094 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 20:13:18,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 20:13:18,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 20:13:18,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 20:13:18,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 20:13:18,472 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 20:13:18,473 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 20:13:18,474 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i [2021-06-13 20:13:18,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e678a315d/9335bcfdb37745fbb6718d2eb045474d/FLAG03f9510fb [2021-06-13 20:13:19,209 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 20:13:19,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i [2021-06-13 20:13:19,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e678a315d/9335bcfdb37745fbb6718d2eb045474d/FLAG03f9510fb [2021-06-13 20:13:19,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e678a315d/9335bcfdb37745fbb6718d2eb045474d [2021-06-13 20:13:19,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 20:13:19,544 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 20:13:19,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 20:13:19,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 20:13:19,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 20:13:19,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 08:13:19" (1/1) ... [2021-06-13 20:13:19,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3748d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:19, skipping insertion in model container [2021-06-13 20:13:19,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 08:13:19" (1/1) ... [2021-06-13 20:13:19,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 20:13:19,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 20:13:19,792 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i[951,964] [2021-06-13 20:13:19,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 20:13:19,974 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 20:13:19,987 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i[951,964] [2021-06-13 20:13:20,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 20:13:20,100 INFO L208 MainTranslator]: Completed translation [2021-06-13 20:13:20,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20 WrapperNode [2021-06-13 20:13:20,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 20:13:20,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 20:13:20,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 20:13:20,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 20:13:20,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (1/1) ... [2021-06-13 20:13:20,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (1/1) ... [2021-06-13 20:13:20,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 20:13:20,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 20:13:20,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 20:13:20,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 20:13:20,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (1/1) ... [2021-06-13 20:13:20,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (1/1) ... [2021-06-13 20:13:20,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (1/1) ... [2021-06-13 20:13:20,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (1/1) ... [2021-06-13 20:13:20,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (1/1) ... [2021-06-13 20:13:20,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (1/1) ... [2021-06-13 20:13:20,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (1/1) ... [2021-06-13 20:13:20,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 20:13:20,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 20:13:20,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 20:13:20,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 20:13:20,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 20:13:20,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 20:13:20,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-13 20:13:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 20:13:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 20:13:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-13 20:13:20,280 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-13 20:13:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-13 20:13:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-13 20:13:20,281 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-13 20:13:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-13 20:13:20,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 20:13:20,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-13 20:13:20,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 20:13:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 20:13:20,282 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 20:13:20,635 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 20:13:20,636 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-13 20:13:20,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 08:13:20 BoogieIcfgContainer [2021-06-13 20:13:20,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 20:13:20,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 20:13:20,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 20:13:20,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 20:13:20,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 08:13:19" (1/3) ... [2021-06-13 20:13:20,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1059bbf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 08:13:20, skipping insertion in model container [2021-06-13 20:13:20,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:13:20" (2/3) ... [2021-06-13 20:13:20,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1059bbf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 08:13:20, skipping insertion in model container [2021-06-13 20:13:20,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 08:13:20" (3/3) ... [2021-06-13 20:13:20,644 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_power.opt.i [2021-06-13 20:13:20,649 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 20:13:20,649 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 20:13:20,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 20:13:20,650 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 20:13:20,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,673 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,674 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,674 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,674 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,675 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,678 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,678 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,679 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,679 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,681 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,682 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,686 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,686 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,686 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,686 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,688 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,688 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,689 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 20:13:20,690 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-13 20:13:20,708 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 20:13:20,756 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 20:13:20,757 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 20:13:20,757 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 20:13:20,757 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 20:13:20,757 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 20:13:20,757 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 20:13:20,757 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 20:13:20,757 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 20:13:20,817 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 20:13:20,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 20:13:20,822 INFO L82 PathProgramCache]: Analyzing trace with hash -2067193524, now seen corresponding path program 1 times [2021-06-13 20:13:20,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 20:13:20,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764040664] [2021-06-13 20:13:20,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 20:13:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 20:13:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 20:13:21,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 20:13:21,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764040664] [2021-06-13 20:13:21,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764040664] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 20:13:21,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 20:13:21,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-13 20:13:21,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028885957] [2021-06-13 20:13:21,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-13 20:13:21,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 20:13:21,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-13 20:13:21,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-13 20:13:21,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:21,055 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 20:13:21,057 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 20:13:21,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:21,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:21,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 20:13:21,076 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 20:13:21,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 20:13:21,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1764087314, now seen corresponding path program 1 times [2021-06-13 20:13:21,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 20:13:21,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332285710] [2021-06-13 20:13:21,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 20:13:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 20:13:21,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 20:13:21,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 20:13:21,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332285710] [2021-06-13 20:13:21,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332285710] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 20:13:21,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 20:13:21,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 20:13:21,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518964469] [2021-06-13 20:13:21,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 20:13:21,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 20:13:21,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 20:13:21,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 20:13:21,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:21,325 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 20:13:21,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 20:13:21,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:21,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:21,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:21,524 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 20:13:21,524 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 20:13:21,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 20:13:21,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1381762818, now seen corresponding path program 2 times [2021-06-13 20:13:21,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 20:13:21,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627701730] [2021-06-13 20:13:21,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 20:13:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 20:13:21,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 20:13:21,756 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 20:13:21,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627701730] [2021-06-13 20:13:21,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627701730] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 20:13:21,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 20:13:21,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 20:13:21,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204076706] [2021-06-13 20:13:21,757 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 20:13:21,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 20:13:21,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 20:13:21,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 20:13:21,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:21,759 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 20:13:21,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 20:13:21,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:21,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:21,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:22,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:22,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:22,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 20:13:22,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 20:13:22,551 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 20:13:22,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 20:13:22,552 INFO L82 PathProgramCache]: Analyzing trace with hash -191517140, now seen corresponding path program 3 times [2021-06-13 20:13:22,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 20:13:22,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077246759] [2021-06-13 20:13:22,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 20:13:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 20:13:22,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 20:13:22,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 20:13:22,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077246759] [2021-06-13 20:13:22,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077246759] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 20:13:22,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 20:13:22,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 20:13:22,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085913859] [2021-06-13 20:13:22,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 20:13:22,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 20:13:22,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 20:13:22,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 20:13:22,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:22,728 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 20:13:22,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 20:13:22,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:22,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:22,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-13 20:13:22,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:23,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:23,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:23,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 20:13:23,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:23,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 20:13:23,239 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 20:13:23,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 20:13:23,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1660044152, now seen corresponding path program 4 times [2021-06-13 20:13:23,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 20:13:23,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482478997] [2021-06-13 20:13:23,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 20:13:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 20:13:23,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 20:13:23,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 20:13:23,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482478997] [2021-06-13 20:13:23,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482478997] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 20:13:23,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 20:13:23,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 20:13:23,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93633794] [2021-06-13 20:13:23,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 20:13:23,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 20:13:23,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 20:13:23,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 20:13:23,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:23,327 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 20:13:23,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 20:13:23,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:23,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:23,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-13 20:13:23,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:23,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:24,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 20:13:24,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:24,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 20:13:24,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:24,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 20:13:24,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-13 20:13:24,015 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 20:13:24,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 08:13:24 BasicIcfg [2021-06-13 20:13:24,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 20:13:24,017 INFO L168 Benchmark]: Toolchain (without parser) took 4472.92 ms. Allocated memory was 192.9 MB in the beginning and 338.7 MB in the end (delta: 145.8 MB). Free memory was 154.0 MB in the beginning and 230.5 MB in the end (delta: -76.4 MB). Peak memory consumption was 155.8 MB. Max. memory is 8.0 GB. [2021-06-13 20:13:24,018 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 192.9 MB. Free memory is still 172.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 20:13:24,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.05 ms. Allocated memory is still 192.9 MB. Free memory was 153.9 MB in the beginning and 152.9 MB in the end (delta: 993.9 kB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-13 20:13:24,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.70 ms. Allocated memory is still 192.9 MB. Free memory was 152.9 MB in the beginning and 150.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 20:13:24,019 INFO L168 Benchmark]: Boogie Preprocessor took 39.55 ms. Allocated memory is still 192.9 MB. Free memory was 150.8 MB in the beginning and 149.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 20:13:24,019 INFO L168 Benchmark]: RCFGBuilder took 437.26 ms. Allocated memory is still 192.9 MB. Free memory was 149.2 MB in the beginning and 125.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-06-13 20:13:24,020 INFO L168 Benchmark]: TraceAbstraction took 3377.38 ms. Allocated memory was 192.9 MB in the beginning and 338.7 MB in the end (delta: 145.8 MB). Free memory was 125.1 MB in the beginning and 230.5 MB in the end (delta: -105.4 MB). Peak memory consumption was 126.9 MB. Max. memory is 8.0 GB. [2021-06-13 20:13:24,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 192.9 MB. Free memory is still 172.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 555.05 ms. Allocated memory is still 192.9 MB. Free memory was 153.9 MB in the beginning and 152.9 MB in the end (delta: 993.9 kB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.70 ms. Allocated memory is still 192.9 MB. Free memory was 152.9 MB in the beginning and 150.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.55 ms. Allocated memory is still 192.9 MB. Free memory was 150.8 MB in the beginning and 149.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 437.26 ms. Allocated memory is still 192.9 MB. Free memory was 149.2 MB in the beginning and 125.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3377.38 ms. Allocated memory was 192.9 MB in the beginning and 338.7 MB in the end (delta: 145.8 MB). Free memory was 125.1 MB in the beginning and 230.5 MB in the end (delta: -105.4 MB). Peak memory consumption was 126.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 50556, positive: 48623, positive conditional: 48623, positive unconditional: 0, negative: 1933, negative conditional: 1933, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 48813, positive: 48623, positive conditional: 48623, positive unconditional: 0, negative: 190, negative conditional: 190, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 48813, positive: 48230, positive conditional: 0, positive unconditional: 48230, negative: 583, negative conditional: 0, negative unconditional: 583, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 637, positive: 627, positive conditional: 0, positive unconditional: 627, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 637, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 16, positive conditional: 10, positive unconditional: 6, negative: 14, negative conditional: 4, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, positive: 44, positive conditional: 19, positive unconditional: 25, negative: 47, negative conditional: 8, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48813, positive: 47603, positive conditional: 0, positive unconditional: 47603, negative: 573, negative conditional: 0, negative unconditional: 573, unknown: 637, unknown conditional: 0, unknown unconditional: 637] , Statistics on independence cache: Total cache size (in pairs): 651, Positive cache size: 637, Positive conditional cache size: 10, Positive unconditional cache size: 627, Negative cache size: 14, Negative conditional cache size: 4, Negative unconditional cache size: 10, SemanticConditionEliminator.Independence Queries: [ total: 1986, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 1593, negative conditional: 67, negative unconditional: 1526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1986, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 1593, negative conditional: 67, negative unconditional: 1526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 16, positive conditional: 10, positive unconditional: 6, negative: 14, negative conditional: 4, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, positive: 44, positive conditional: 19, positive unconditional: 25, negative: 47, negative conditional: 8, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1986, positive: 383, positive conditional: 383, positive unconditional: 0, negative: 1589, negative conditional: 63, negative unconditional: 1526, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 651, Positive cache size: 637, Positive conditional cache size: 10, Positive unconditional cache size: 627, Negative cache size: 14, Negative conditional cache size: 4, Negative unconditional cache size: 10, Eliminated conditions: 1526, SemanticConditionEliminator.Independence Queries: [ total: 1986, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 1593, negative conditional: 67, negative unconditional: 1526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1986, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 1593, negative conditional: 67, negative unconditional: 1526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 16, positive conditional: 10, positive unconditional: 6, negative: 14, negative conditional: 4, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, positive: 44, positive conditional: 19, positive unconditional: 25, negative: 47, negative conditional: 8, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1986, positive: 383, positive conditional: 383, positive unconditional: 0, negative: 1589, negative conditional: 63, negative unconditional: 1526, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 651, Positive cache size: 637, Positive conditional cache size: 10, Positive unconditional cache size: 627, Negative cache size: 14, Negative conditional cache size: 4, Negative unconditional cache size: 10, Eliminated conditions: 1526, SemanticConditionEliminator.Independence Queries: [ total: 1986, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 1593, negative conditional: 67, negative unconditional: 1526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1986, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 1593, negative conditional: 67, negative unconditional: 1526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 16, positive conditional: 10, positive unconditional: 6, negative: 14, negative conditional: 4, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, positive: 44, positive conditional: 19, positive unconditional: 25, negative: 47, negative conditional: 8, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1986, positive: 383, positive conditional: 383, positive unconditional: 0, negative: 1589, negative conditional: 63, negative unconditional: 1526, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 651, Positive cache size: 637, Positive conditional cache size: 10, Positive unconditional cache size: 627, Negative cache size: 14, Negative conditional cache size: 4, Negative unconditional cache size: 10, Eliminated conditions: 1526, SemanticConditionEliminator.Independence Queries: [ total: 1986, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 1593, negative conditional: 67, negative unconditional: 1526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1986, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 1593, negative conditional: 67, negative unconditional: 1526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 16, positive conditional: 10, positive unconditional: 6, negative: 14, negative conditional: 4, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, positive: 44, positive conditional: 19, positive unconditional: 25, negative: 47, negative conditional: 8, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1986, positive: 383, positive conditional: 383, positive unconditional: 0, negative: 1589, negative conditional: 63, negative unconditional: 1526, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 651, Positive cache size: 637, Positive conditional cache size: 10, Positive unconditional cache size: 627, Negative cache size: 14, Negative conditional cache size: 4, Negative unconditional cache size: 10, Eliminated conditions: 1526, SemanticConditionEliminator.Independence Queries: [ total: 1986, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 1593, negative conditional: 67, negative unconditional: 1526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1986, positive: 393, positive conditional: 393, positive unconditional: 0, negative: 1593, negative conditional: 67, negative unconditional: 1526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 16, positive conditional: 10, positive unconditional: 6, negative: 14, negative conditional: 4, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, positive: 44, positive conditional: 19, positive unconditional: 25, negative: 47, negative conditional: 8, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1986, positive: 383, positive conditional: 383, positive unconditional: 0, negative: 1589, negative conditional: 63, negative unconditional: 1526, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 651, Positive cache size: 637, Positive conditional cache size: 10, Positive unconditional cache size: 627, Negative cache size: 14, Negative conditional cache size: 4, Negative unconditional cache size: 10, Eliminated conditions: 1526 ], Maximal queried relation: 5, Independence queries for same thread: 1743 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3291.6ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 2247.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.5ms SsaConstructionTime, 135.2ms SatisfiabilityAnalysisTime, 694.8ms InterpolantComputationTime, 341 NumberOfCodeBlocks, 341 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 336 ConstructedInterpolants, 0 QuantifiedInterpolants, 835 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...